linter + новые таски

.kilocode/rules/specify-rules.md

@@ -33,6 +33,8 @@ Auto-generated from all feature plans. Last updated: 2025-12-19
 - N/A (UI reorganization and API integration) (015-frontend-nav-redesign)
 - SQLite (`auth.db`) for Users, Roles, Permissions, and Mappings. (016-multi-user-auth)
 - SQLite (existing `tasks.db` for results, `auth.db` for permissions, `mappings.db` or new `plugins.db` for provider config/metadata) (017-llm-analysis-plugin)
+- Python 3.9+ (Backend), Node.js 18+ (Frontend) + FastAPI, SvelteKit, Tailwind CSS, SQLAlchemy, WebSocket (existing) (019-superset-ux-redesign)
+- SQLite (tasks.db, auth.db, migrations.db) - no new database tables required (019-superset-ux-redesign)
 
 - Python 3.9+ (Backend), Node.js 18+ (Frontend Build) (001-plugin-arch-svelte-ui)
 
@@ -53,9 +55,9 @@ cd src; pytest; ruff check .
 Python 3.9+ (Backend), Node.js 18+ (Frontend Build): Follow standard conventions
 
 ## Recent Changes
+- 019-superset-ux-redesign: Added Python 3.9+ (Backend), Node.js 18+ (Frontend) + FastAPI, SvelteKit, Tailwind CSS, SQLAlchemy, WebSocket (existing)
 - 017-llm-analysis-plugin: Added Python 3.9+ (Backend), Node.js 18+ (Frontend)
 - 016-multi-user-auth: Added Python 3.9+ (Backend), Node.js 18+ (Frontend)
-- 015-frontend-nav-redesign: Added Python 3.9+ (Backend), Node.js 18+ (Frontend) + FastAPI (Backend), SvelteKit + Tailwind CSS (Frontend)
 
 
 <!-- MANUAL ADDITIONS START -->

.kilocode/workflows/speckit.plan.md

@@ -66,25 +66,28 @@ You **MUST** consider the user input before proceeding (if not empty).
 
 0. **Validate Design against UX Reference**:
    - Check if the proposed architecture supports the latency, interactivity, and flow defined in `ux_reference.md`.
-   - **CRITICAL**: If the technical plan requires compromising the UX defined in `ux_reference.md` (e.g. "We can't do real-time validation because X"), you **MUST STOP** and warn the user. Do not proceed until resolved.
+   - **Linkage**: Ensure key UI states from `ux_reference.md` map to Component Contracts (`@UX_STATE`).
+   - **CRITICAL**: If the technical plan compromises the UX (e.g. "We can't do real-time validation"), you **MUST STOP** and warn the user.
 
 1. **Extract entities from feature spec** → `data-model.md`:
-   - Entity name, fields, relationships
-   - Validation rules from requirements
-   - State transitions if applicable
+   - Entity name, fields, relationships, validation rules.
 
-2. **Define Module & Function Contracts (Semantic Protocol)**:
-   - **MANDATORY**: For every new module, define the [DEF] Header and Module-level Contract (@TIER, @PURPOSE, @INVARIANT) as per `semantic_protocol.md`.
-   - **REQUIRED**: Define Function Contracts (@PRE, @POST) for critical logic.
-   - Output specific contract definitions to `contracts/modules.md` or append to `data-model.md` to guide implementation.
-   - Ensure strict adherence to `semantic_protocol.md` syntax.
+2. **Design & Verify Contracts (Semantic Protocol)**:
+   - **Drafting**: Define [DEF] Headers and Contracts for all new modules based on `semantic_protocol.md`.
+   - **Self-Review**:
+     - *Completeness*: Do `@PRE`/`@POST` cover edge cases identified in Research?
+     - *Connectivity*: Do `@RELATION` tags form a coherent graph?
+     - *Compliance*: Does syntax match `[DEF:id:Type]` exactly?
+   - **Output**: Write verified contracts to `contracts/modules.md`.
 
-3. **Generate API contracts** from functional requirements:
-   - For each user action → endpoint
-   - Use standard REST/GraphQL patterns
-   - Output OpenAPI/GraphQL schema to `/contracts/`
+3. **Simulate Contract Usage**:
+   - Trace one key user scenario through the defined contracts to ensure data flow continuity.
+   - If a contract interface mismatch is found, fix it immediately.
 
-3. **Agent context update**:
+4. **Generate API contracts**:
+   - Output OpenAPI/GraphQL schema to `/contracts/` for backend-frontend sync.
+
+5. **Agent context update**:
    - Run `.specify/scripts/bash/update-agent-context.sh kilocode`
    - These scripts detect which AI agent is in use
    - Update the appropriate agent-specific context file

.kilocode/workflows/speckit.test.md

@@ -1,9 +1,16 @@
----
-description: Run semantic validation and functional tests for a specific feature, module, or file.
+№ **speckit.tasks.md**
+### Modified Workflow
+
+```markdown
+description: Generate an actionable, dependency-ordered tasks.md for the feature based on available design artifacts.
 handoffs: 
-  - label: Fix Implementation
+  - label: Analyze For Consistency
+    agent: speckit.analyze
+    prompt: Run a project analysis for consistency
+    send: true
+  - label: Implement Project
     agent: speckit.implement
-    prompt: Fix the issues found during testing...
+    prompt: Start the implementation in phases
     send: true
 ---
 
@@ -13,54 +20,97 @@ handoffs:
 $ARGUMENTS
 ```
 
-**Input format:** Can be a file path, a directory, or a feature name.
+You **MUST** consider the user input before proceeding (if not empty).
 
 ## Outline
 
-1. **Context Analysis**:
-   - Determine the target scope (Backend vs Frontend vs Full Feature).
-   - Read `semantic_protocol.md` to load validation rules.
+1. **Setup**: Run `.specify/scripts/bash/check-prerequisites.sh --json` from repo root and parse FEATURE_DIR and AVAILABLE_DOCS list. All paths must be absolute.
 
-2. **Phase 1: Semantic Static Analysis (The "Compiler" Check)**
-   - **Command:** Use `grep` or script to verify Protocol compliance before running code.
-   - **Check:**
-     - Does the file start with `[DEF:...]` header?
-     - Are `@TIER` and `@PURPOSE` defined?
-     - Are imports located *after* the contracts?
-     - Do functions marked "Critical" have `@PRE`/`@POST` tags?
-   - **Action:** If this phase fails, **STOP** and report "Semantic Compilation Failed". Do not run runtime tests.
+2. **Load design documents**: Read from FEATURE_DIR:
+   - **Required**: plan.md (tech stack, libraries, structure), spec.md (user stories with priorities), ux_reference.md (experience source of truth)
+   - **Optional**: data-model.md (entities), contracts/ (API endpoints), research.md (decisions)
 
-3. **Phase 2: Environment Prep**
-   - Detect project type:
-     - **Python**: Check if `.venv` is active.
-     - **Svelte**: Check if `node_modules` exists.
-   - **Command:** Run linter (e.g., `ruff check`, `eslint`) to catch syntax errors immediately.
+3. **Execute task generation workflow**:
+   - **Architecture Analysis (CRITICAL)**: Scan existing codebase for patterns (DI, Auth, ORM).
+   - Load plan.md/spec.md.
+   - Generate tasks organized by user story.
+   - **Apply Fractal Co-location**: Ensure all unit tests are mapped to `__tests__` subdirectories relative to the code.
+   - Validate task completeness.
 
-4. **Phase 3: Test Execution (Runtime)**
-   - Select the test runner based on the file path:
-     - **Backend (`*.py`)**:
-       - Command: `pytest <path_to_test_file> -v`
-       - If no specific test file exists, try to find it by convention: `tests/test_<module_name>.py`.
-     - **Frontend (`*.svelte`, `*.ts`)**:
-       - Command: `npm run test -- <path_to_component>`
-   
-   - **Verification**:
-     - Analyze output logs.
-     - If tests fail, summarize the failure (AssertionError, Timeout, etc.).
+4. **Generate tasks.md**: Use `.specify/templates/tasks-template.md` as structure.
+   - Phase 1: Context & Setup.
+   - Phase 2: Foundational tasks.
+   - Phase 3+: User Stories (Priority order).
+   - Final Phase: Polish.
+   - **Strict Constraint**: Ensure tasks follow the Co-location and Mocking rules below.
 
-5. **Phase 4: Contract Coverage Check (Manual/LLM verify)**
-   - Review the test cases executed.
-   - **Question**: Do the tests explicitly verify the `@POST` guarantees defined in the module header?
-   - **Report**: Mark as "Weak Coverage" if contracts exist but aren't tested.
+5. **Report**: Output path to generated tasks.md and summary.
 
-## Execution Rules
+Context for task generation: $ARGUMENTS
 
-- **Fail Fast**: If semantic headers are missing, don't waste time running pytest.
-- **No Silent Failures**: Always output the full error log if a command fails.
-- **Auto-Correction Hint**: If a test fails, suggest the specific `speckit.implement` command to fix it.
+## Task Generation Rules
 
-## Example Commands
+**CRITICAL**: Tasks MUST be actionable, specific, architecture-aware, and context-local.
 
-- **Python**: `pytest backend/tests/test_auth.py`
-- **Svelte**: `npm run test:unit -- src/components/Button.svelte`
-- **Lint**: `ruff check backend/src/api/`
+### Implementation & Testing Constraints (ANTI-LOOP & CO-LOCATION)
+
+To prevent infinite debugging loops and context fragmentation, apply these rules:
+
+1.  **Fractal Co-location Strategy (MANDATORY)**:
+    - **Rule**: Unit tests MUST live next to the code they verify.
+    - **Forbidden**: Do NOT create unit tests in root `tests/` or `backend/tests/`. Those are for E2E/Integration only.
+    - **Pattern (Python)**:
+      - Source: `src/domain/order/processing.py`
+      - Test Task: `Create tests in src/domain/order/__tests__/test_processing.py`
+    - **Pattern (Frontend)**:
+      - Source: `src/lib/components/UserCard.svelte`
+      - Test Task: `Create tests in src/lib/components/__tests__/UserCard.test.ts`
+
+2.  **Semantic Relations**:
+    - Test generation tasks must explicitly instruct to add the relation header: `# @RELATION: VERIFIES -> [TargetComponent]`
+
+3.  **Strict Mocking for Unit Tests**:
+    - Any task creating Unit Tests MUST specify: *"Use `unittest.mock.MagicMock` for heavy dependencies (DB sessions, Auth). Do NOT instantiate real service classes."*
+
+4.  **Schema/Model Separation**:
+    - Explicitly separate tasks for ORM Models (SQLAlchemy) and Pydantic Schemas.
+
+### UX Preservation (CRITICAL)
+
+- **Source of Truth**: `ux_reference.md` is the absolute standard.
+- **Verification Task**: You **MUST** add a specific task at the end of each User Story phase: `- [ ] Txxx [USx] Verify implementation matches ux_reference.md (Happy Path & Errors)`
+
+### Checklist Format (REQUIRED)
+
+Every task MUST strictly follow this format:
+
+```text
+- [ ] [TaskID] [P?] [Story?] Description with file path
+```
+
+**Examples**:
+- ✅ `- [ ] T005 [US1] Create unit tests for OrderService in src/services/__tests__/test_order.py (Mock DB)`
+- ✅ `- [ ] T006 [US1] Implement OrderService in src/services/order.py`
+- ❌ `- [ ] T005 [US1] Create tests in backend/tests/test_order.py` (VIOLATION: Wrong location)
+
+### Task Organization & Phase Structure
+
+**Phase 1: Context & Setup**
+- **Goal**: Prepare environment and understand existing patterns.
+- **Mandatory Task**: `- [ ] T001 Analyze existing project structure, auth patterns, and `conftest.py` location`
+
+**Phase 2: Foundational (Data & Core)**
+- Database Models (ORM).
+- Pydantic Schemas (DTOs).
+- Core Service interfaces.
+
+**Phase 3+: User Stories (Iterative)**
+- **Step 1: Isolation Tests (Co-located)**: 
+  - `- [ ] Txxx [USx] Create unit tests for [Component] in [Path]/__tests__/test_[name].py`
+  - *Note: Specify using MagicMock for external deps.*
+- **Step 2: Implementation**: Services -> Endpoints.
+- **Step 3: Integration**: Wire up real dependencies (if E2E tests requested).
+- **Step 4: UX Verification**.
+
+**Final Phase: Polish**
+- Linting, formatting, final manual verify.

backend/src/api/routes/__init__.py

@@ -1 +1,3 @@
 from . import plugins, tasks, settings, connections, environments, mappings, migration, git, storage, admin
+
+__all__ = ['plugins', 'tasks', 'settings', 'connections', 'environments', 'mappings', 'migration', 'git', 'storage', 'admin']

backend/src/api/routes/admin.py

@@ -21,8 +21,8 @@ from ...schemas.auth import (
     RoleSchema, RoleCreate, RoleUpdate, PermissionSchema,
     ADGroupMappingSchema, ADGroupMappingCreate
 )
-from ...models.auth import User, Role, Permission, ADGroupMapping
-from ...dependencies import has_permission, get_current_user
+from ...models.auth import User, Role, ADGroupMapping
+from ...dependencies import has_permission
 from ...core.logger import logger, belief_scope
 # [/SECTION]
 

backend/src/api/routes/connections.py

@@ -11,7 +11,7 @@ from fastapi import APIRouter, Depends, HTTPException, status
 from sqlalchemy.orm import Session
 from ...core.database import get_db
 from ...models.connection import ConnectionConfig
-from pydantic import BaseModel, Field
+from pydantic import BaseModel
 from datetime import datetime
 from ...core.logger import logger, belief_scope
 # [/SECTION]

backend/src/api/routes/dashboards.py

@@ -0,0 +1,105 @@
+# [DEF:backend.src.api.routes.dashboards:Module]
+#
+# @TIER: STANDARD
+# @SEMANTICS: api, dashboards, resources, hub
+# @PURPOSE:   API endpoints for the Dashboard Hub - listing dashboards with Git and task status
+# @LAYER:     API
+# @RELATION:  DEPENDS_ON -> backend.src.dependencies
+# @RELATION:  DEPENDS_ON -> backend.src.services.resource_service
+# @RELATION:  DEPENDS_ON -> backend.src.core.superset_client
+#
+# @INVARIANT: All dashboard responses include git_status and last_task metadata
+
+# [SECTION: IMPORTS]
+from fastapi import APIRouter, Depends, HTTPException
+from typing import List, Optional
+from pydantic import BaseModel, Field
+from ...dependencies import get_config_manager, get_task_manager, get_resource_service, has_permission
+from ...core.logger import logger, belief_scope
+# [/SECTION]
+
+router = APIRouter()
+
+# [DEF:GitStatus:DataClass]
+class GitStatus(BaseModel):
+    branch: Optional[str] = None
+    sync_status: Optional[str] = Field(None, pattern="^OK|DIFF$")
+# [/DEF:GitStatus:DataClass]
+
+# [DEF:LastTask:DataClass]
+class LastTask(BaseModel):
+    task_id: Optional[str] = None
+    status: Optional[str] = Field(None, pattern="^RUNNING|SUCCESS|ERROR|WAITING_INPUT$")
+# [/DEF:LastTask:DataClass]
+
+# [DEF:DashboardItem:DataClass]
+class DashboardItem(BaseModel):
+    id: int
+    title: str
+    slug: Optional[str] = None
+    url: Optional[str] = None
+    last_modified: Optional[str] = None
+    git_status: Optional[GitStatus] = None
+    last_task: Optional[LastTask] = None
+# [/DEF:DashboardItem:DataClass]
+
+# [DEF:DashboardsResponse:DataClass]
+class DashboardsResponse(BaseModel):
+    dashboards: List[DashboardItem]
+    total: int
+# [/DEF:DashboardsResponse:DataClass]
+
+# [DEF:get_dashboards:Function]
+# @PURPOSE: Fetch list of dashboards from a specific environment with Git status and last task status
+# @PRE: env_id must be a valid environment ID
+# @POST: Returns a list of dashboards with enhanced metadata
+# @PARAM: env_id (str) - The environment ID to fetch dashboards from
+# @PARAM: search (Optional[str]) - Filter by title/slug
+# @RETURN: DashboardsResponse - List of dashboards with status metadata
+# @RELATION: CALLS -> ResourceService.get_dashboards_with_status
+@router.get("/api/dashboards", response_model=DashboardsResponse)
+async def get_dashboards(
+    env_id: str,
+    search: Optional[str] = None,
+    config_manager=Depends(get_config_manager),
+    task_manager=Depends(get_task_manager),
+    resource_service=Depends(get_resource_service),
+    _ = Depends(has_permission("plugin:migration", "READ"))
+):
+    with belief_scope("get_dashboards", f"env_id={env_id}, search={search}"):
+        # Validate environment exists
+        environments = config_manager.get_environments()
+        env = next((e for e in environments if e.id == env_id), None)
+        if not env:
+            logger.error(f"[get_dashboards][Coherence:Failed] Environment not found: {env_id}")
+            raise HTTPException(status_code=404, detail="Environment not found")
+        
+        try:
+            # Get all tasks for status lookup
+            all_tasks = task_manager.get_all_tasks()
+            
+            # Fetch dashboards with status using ResourceService
+            dashboards = await resource_service.get_dashboards_with_status(env, all_tasks)
+            
+            # Apply search filter if provided
+            if search:
+                search_lower = search.lower()
+                dashboards = [
+                    d for d in dashboards 
+                    if search_lower in d.get('title', '').lower() 
+                    or search_lower in d.get('slug', '').lower()
+                ]
+            
+            logger.info(f"[get_dashboards][Coherence:OK] Returning {len(dashboards)} dashboards")
+            
+            return DashboardsResponse(
+                dashboards=dashboards,
+                total=len(dashboards)
+            )
+            
+        except Exception as e:
+            logger.error(f"[get_dashboards][Coherence:Failed] Failed to fetch dashboards: {e}")
+            raise HTTPException(status_code=503, detail=f"Failed to fetch dashboards: {str(e)}")
+# [/DEF:get_dashboards:Function]
+
+# [/DEF:backend.src.api.routes.dashboards:Module]

backend/src/api/routes/datasets.py

@@ -0,0 +1,103 @@
+# [DEF:backend.src.api.routes.datasets:Module]
+#
+# @TIER: STANDARD
+# @SEMANTICS: api, datasets, resources, hub
+# @PURPOSE:   API endpoints for the Dataset Hub - listing datasets with mapping progress
+# @LAYER:     API
+# @RELATION:  DEPENDS_ON -> backend.src.dependencies
+# @RELATION:  DEPENDS_ON -> backend.src.services.resource_service
+# @RELATION:  DEPENDS_ON -> backend.src.core.superset_client
+#
+# @INVARIANT: All dataset responses include last_task metadata
+
+# [SECTION: IMPORTS]
+from fastapi import APIRouter, Depends, HTTPException
+from typing import List, Optional
+from pydantic import BaseModel, Field
+from ...dependencies import get_config_manager, get_task_manager, get_resource_service, has_permission
+from ...core.logger import logger, belief_scope
+# [/SECTION]
+
+router = APIRouter()
+
+# [DEF:MappedFields:DataClass]
+class MappedFields(BaseModel):
+    total: int
+    mapped: int
+# [/DEF:MappedFields:DataClass]
+
+# [DEF:LastTask:DataClass]
+class LastTask(BaseModel):
+    task_id: Optional[str] = None
+    status: Optional[str] = Field(None, pattern="^RUNNING|SUCCESS|ERROR|WAITING_INPUT$")
+# [/DEF:LastTask:DataClass]
+
+# [DEF:DatasetItem:DataClass]
+class DatasetItem(BaseModel):
+    id: int
+    table_name: str
+    schema: str
+    database: str
+    mapped_fields: Optional[MappedFields] = None
+    last_task: Optional[LastTask] = None
+# [/DEF:DatasetItem:DataClass]
+
+# [DEF:DatasetsResponse:DataClass]
+class DatasetsResponse(BaseModel):
+    datasets: List[DatasetItem]
+    total: int
+# [/DEF:DatasetsResponse:DataClass]
+
+# [DEF:get_datasets:Function]
+# @PURPOSE: Fetch list of datasets from a specific environment with mapping progress
+# @PRE:     env_id must be a valid environment ID
+# @POST:    Returns a list of datasets with enhanced metadata
+# @PARAM:   env_id (str) - The environment ID to fetch datasets from
+# @PARAM:   search (Optional[str]) - Filter by table name
+# @RETURN:  DatasetsResponse - List of datasets with status metadata
+# @RELATION: CALLS -> ResourceService.get_datasets_with_status
+@router.get("/api/datasets", response_model=DatasetsResponse)
+async def get_datasets(
+    env_id: str,
+    search: Optional[str] = None,
+    config_manager=Depends(get_config_manager),
+    task_manager=Depends(get_task_manager),
+    resource_service=Depends(get_resource_service),
+    _ = Depends(has_permission("plugin:migration", "READ"))
+):
+    with belief_scope("get_datasets", f"env_id={env_id}, search={search}"):
+        # Validate environment exists
+        environments = config_manager.get_environments()
+        env = next((e for e in environments if e.id == env_id), None)
+        if not env:
+            logger.error(f"[get_datasets][Coherence:Failed] Environment not found: {env_id}")
+            raise HTTPException(status_code=404, detail="Environment not found")
+        
+        try:
+            # Get all tasks for status lookup
+            all_tasks = task_manager.get_all_tasks()
+            
+            # Fetch datasets with status using ResourceService
+            datasets = await resource_service.get_datasets_with_status(env, all_tasks)
+            
+            # Apply search filter if provided
+            if search:
+                search_lower = search.lower()
+                datasets = [
+                    d for d in datasets 
+                    if search_lower in d.get('table_name', '').lower()
+                ]
+            
+            logger.info(f"[get_datasets][Coherence:OK] Returning {len(datasets)} datasets")
+            
+            return DatasetsResponse(
+                datasets=datasets,
+                total=len(datasets)
+            )
+            
+        except Exception as e:
+            logger.error(f"[get_datasets][Coherence:Failed] Failed to fetch datasets: {e}")
+            raise HTTPException(status_code=503, detail=f"Failed to fetch datasets: {str(e)}")
+# [/DEF:get_datasets:Function]
+
+# [/DEF:backend.src.api.routes.datasets:Module]

backend/src/api/routes/environments.py

@@ -11,11 +11,10 @@
 
 # [SECTION: IMPORTS]
 from fastapi import APIRouter, Depends, HTTPException
-from typing import List, Dict, Optional
+from typing import List, Optional
 from ...dependencies import get_config_manager, get_scheduler_service, has_permission
 from ...core.superset_client import SupersetClient
 from pydantic import BaseModel, Field
-from ...core.config_models import Environment as EnvModel
 from ...core.logger import belief_scope
 # [/SECTION]
 

backend/src/api/routes/git.py

@@ -16,10 +16,10 @@ from typing import List, Optional
 import typing
 from src.dependencies import get_config_manager, has_permission
 from src.core.database import get_db
-from src.models.git import GitServerConfig, GitStatus, DeploymentEnvironment, GitRepository
+from src.models.git import GitServerConfig, GitRepository
 from src.api.routes.git_schemas import (
     GitServerConfigSchema, GitServerConfigCreate,
-    GitRepositorySchema, BranchSchema, BranchCreate,
+    BranchSchema, BranchCreate,
     BranchCheckout, CommitSchema, CommitCreate,
     DeploymentEnvironmentSchema, DeployRequest, RepoInitRequest
 )

backend/src/api/routes/git_schemas.py

@@ -11,7 +11,6 @@
 from pydantic import BaseModel, Field
 from typing import List, Optional
 from datetime import datetime
-from uuid import UUID
 from src.models.git import GitProvider, GitStatus, SyncStatus
 
 # [DEF:GitServerConfigBase:Class]

backend/src/api/routes/migration.py

@@ -7,7 +7,7 @@
 # @RELATION:  DEPENDS_ON -> backend.src.models.dashboard
 
 from fastapi import APIRouter, Depends, HTTPException
-from typing import List, Dict
+from typing import List
 from ...dependencies import get_config_manager, get_task_manager, has_permission
 from ...models.dashboard import DashboardMetadata, DashboardSelection
 from ...core.superset_client import SupersetClient

backend/src/api/routes/settings.py

@@ -17,9 +17,8 @@ from ...core.config_models import AppConfig, Environment, GlobalSettings, Loggin
 from ...models.storage import StorageConfig
 from ...dependencies import get_config_manager, has_permission
 from ...core.config_manager import ConfigManager
-from ...core.logger import logger, belief_scope, get_task_log_level
+from ...core.logger import logger, belief_scope
 from ...core.superset_client import SupersetClient
-import os
 # [/SECTION]
 
 # [DEF:LoggingConfigResponse:Class]
@@ -279,4 +278,37 @@ async def update_logging_config(
         )
 # [/DEF:update_logging_config:Function]
 
+# [DEF:ConsolidatedSettingsResponse:Class]
+class ConsolidatedSettingsResponse(BaseModel):
+    environments: List[dict]
+    connections: List[dict]
+    llm: dict
+    logging: dict
+    storage: dict
+# [/DEF:ConsolidatedSettingsResponse:Class]
+
+# [DEF:get_consolidated_settings:Function]
+# @PURPOSE: Retrieves all settings categories in a single call
+# @PRE:     Config manager is available.
+# @POST:    Returns all consolidated settings.
+# @RETURN: ConsolidatedSettingsResponse - All settings categories.
+@router.get("/consolidated", response_model=ConsolidatedSettingsResponse)
+async def get_consolidated_settings(
+    config_manager: ConfigManager = Depends(get_config_manager),
+    _ = Depends(has_permission("admin:settings", "READ"))
+):
+    with belief_scope("get_consolidated_settings"):
+        logger.info("[get_consolidated_settings][Entry] Fetching all consolidated settings")
+        
+        config = config_manager.get_config()
+        
+        return ConsolidatedSettingsResponse(
+            environments=config.environments,
+            connections=config.settings.connections,
+            llm=config.settings.llm,
+            logging=config.settings.logging,
+            storage=config.settings.storage
+        )
+# [/DEF:get_consolidated_settings:Function]
+
 # [/DEF:SettingsRouter:Module]

backend/src/api/routes/tasks.py

@@ -6,7 +6,7 @@
 # @RELATION: Depends on the TaskManager. It is included by the main app.
 from typing import List, Dict, Any, Optional
 from fastapi import APIRouter, Depends, HTTPException, status, Query
-from pydantic import BaseModel, Field
+from pydantic import BaseModel
 from ...core.logger import belief_scope
 
 from ...core.task_manager import TaskManager, Task, TaskStatus, LogEntry

backend/src/app.py

@@ -6,26 +6,23 @@
 # @RELATION: Depends on the dependency module and API route modules.
 # @INVARIANT: Only one FastAPI app instance exists per process.
 # @INVARIANT: All WebSocket connections must be properly cleaned up on disconnect.
-import sys
 from pathlib import Path
 
 # project_root is used for static files mounting
 project_root = Path(__file__).resolve().parent.parent.parent
 
-from fastapi import FastAPI, WebSocket, WebSocketDisconnect, Depends, Request, HTTPException
+from fastapi import FastAPI, WebSocket, WebSocketDisconnect, Request, HTTPException
 from starlette.middleware.sessions import SessionMiddleware
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.staticfiles import StaticFiles
 from fastapi.responses import FileResponse
 import asyncio
-import os
 
 from .dependencies import get_task_manager, get_scheduler_service
 from .core.utils.network import NetworkError
 from .core.logger import logger, belief_scope
-from .api.routes import plugins, tasks, settings, environments, mappings, migration, connections, git, storage, admin, llm
+from .api.routes import plugins, tasks, settings, environments, mappings, migration, connections, git, storage, admin, llm, dashboards, datasets
 from .api import auth
-from .core.database import init_db
 
 # [DEF:App:Global]
 # @SEMANTICS: app, fastapi, instance
@@ -124,6 +121,8 @@ app.include_router(migration.router)
 app.include_router(git.router)
 app.include_router(llm.router)
 app.include_router(storage.router, prefix="/api/storage", tags=["Storage"])
+app.include_router(dashboards.router, tags=["Dashboards"])
+app.include_router(datasets.router, tags=["Datasets"])
 
 # [DEF:websocket_endpoint:Function]
 # @PURPOSE: Provides a WebSocket endpoint for real-time log streaming of a task with server-side filtering.

backend/src/core/auth/config.py

@@ -10,7 +10,6 @@
 # [SECTION: IMPORTS]
 from pydantic import Field
 from pydantic_settings import BaseSettings
-import os
 # [/SECTION]
 
 # [DEF:AuthConfig:Class]

backend/src/core/auth/jwt.py

@@ -11,8 +11,8 @@
 
 # [SECTION: IMPORTS]
 from datetime import datetime, timedelta
-from typing import Optional, List
-from jose import JWTError, jwt
+from typing import Optional
+from jose import jwt
 from .config import auth_config
 from ..logger import belief_scope
 # [/SECTION]

backend/src/core/auth/repository.py

@@ -11,7 +11,7 @@
 # [SECTION: IMPORTS]
 from typing import Optional, List
 from sqlalchemy.orm import Session
-from ...models.auth import User, Role, Permission, ADGroupMapping
+from ...models.auth import User, Role, Permission
 from ..logger import belief_scope
 # [/SECTION]
 

backend/src/core/config_manager.py

@@ -15,7 +15,7 @@ import json
 import os
 from pathlib import Path
 from typing import Optional, List
-from .config_models import AppConfig, Environment, GlobalSettings
+from .config_models import AppConfig, Environment, GlobalSettings, StorageConfig
 from .logger import logger, configure_logger, belief_scope
 # [/SECTION]
 
@@ -46,7 +46,7 @@ class ConfigManager:
             # 3. Runtime check of @POST
             assert isinstance(self.config, AppConfig), "self.config must be an instance of AppConfig"
 
-            logger.info(f"[ConfigManager][Exit] Initialized")
+            logger.info("[ConfigManager][Exit] Initialized")
     # [/DEF:__init__:Function]
 
     # [DEF:_load_config:Function]
@@ -59,7 +59,7 @@ class ConfigManager:
             logger.debug(f"[_load_config][Entry] Loading from {self.config_path}")
         
         if not self.config_path.exists():
-            logger.info(f"[_load_config][Action] Config file not found. Creating default.")
+            logger.info("[_load_config][Action] Config file not found. Creating default.")
             default_config = AppConfig(
                 environments=[],
                 settings=GlobalSettings()
@@ -75,7 +75,7 @@ class ConfigManager:
                     del data["settings"]["backup_path"]
 
                 config = AppConfig(**data)
-                logger.info(f"[_load_config][Coherence:OK] Configuration loaded")
+                logger.info("[_load_config][Coherence:OK] Configuration loaded")
                 return config
         except Exception as e:
             logger.error(f"[_load_config][Coherence:Failed] Error loading config: {e}")
@@ -103,7 +103,7 @@ class ConfigManager:
         try:
             with open(self.config_path, "w") as f:
                 json.dump(config.dict(), f, indent=4)
-            logger.info(f"[_save_config_to_disk][Action] Configuration saved")
+            logger.info("[_save_config_to_disk][Action] Configuration saved")
         except Exception as e:
             logger.error(f"[_save_config_to_disk][Coherence:Failed] Failed to save: {e}")
     # [/DEF:_save_config_to_disk:Function]
@@ -134,7 +134,7 @@ class ConfigManager:
     # @PARAM: settings (GlobalSettings) - The new global settings.
     def update_global_settings(self, settings: GlobalSettings):
         with belief_scope("update_global_settings"):
-            logger.info(f"[update_global_settings][Entry] Updating settings")
+            logger.info("[update_global_settings][Entry] Updating settings")
         
         # 1. Runtime check of @PRE
         assert isinstance(settings, GlobalSettings), "settings must be an instance of GlobalSettings"
@@ -146,7 +146,7 @@ class ConfigManager:
         # Reconfigure logger with new settings
         configure_logger(settings.logging)
 
-        logger.info(f"[update_global_settings][Exit] Settings updated")
+        logger.info("[update_global_settings][Exit] Settings updated")
     # [/DEF:update_global_settings:Function]
 
     # [DEF:validate_path:Function]
@@ -222,7 +222,7 @@ class ConfigManager:
         self.config.environments.append(env)
         self.save()
         
-        logger.info(f"[add_environment][Exit] Environment added")
+        logger.info("[add_environment][Exit] Environment added")
     # [/DEF:add_environment:Function]
 
     # [DEF:update_environment:Function]

backend/src/core/database.py

@@ -11,14 +11,9 @@
 
 # [SECTION: IMPORTS]
 from sqlalchemy import create_engine
-from sqlalchemy.orm import sessionmaker, Session
+from sqlalchemy.orm import sessionmaker
 from ..models.mapping import Base
 # Import models to ensure they're registered with Base
-from ..models.task import TaskRecord
-from ..models.connection import ConnectionConfig
-from ..models.git import GitServerConfig, GitRepository, DeploymentEnvironment
-from ..models.auth import User, Role, Permission, ADGroupMapping
-from ..models.llm import LLMProvider, ValidationRecord
 from .logger import belief_scope
 from .auth.config import auth_config
 import os

backend/src/core/logger.py

@@ -111,7 +111,6 @@ def configure_logger(config):
 
     # Add file handler if file_path is set
     if config.file_path:
-        import os
         from pathlib import Path
         log_file = Path(config.file_path)
         log_file.parent.mkdir(parents=True, exist_ok=True)

backend/src/core/migration_engine.py

@@ -11,12 +11,10 @@
 import zipfile
 import yaml
 import os
-import shutil
 import tempfile
 from pathlib import Path
 from typing import Dict
 from .logger import logger, belief_scope
-import yaml
 # [/SECTION]
 
 # [DEF:MigrationEngine:Class]

backend/src/core/plugin_loader.py

@@ -1,9 +1,8 @@
 import importlib.util
 import os
 import sys # Added this line
-from typing import Dict, Type, List, Optional
+from typing import Dict, List, Optional
 from .plugin_base import PluginBase, PluginConfig
-from jsonschema import validate
 from .logger import belief_scope
 
 # [DEF:PluginLoader:Class]

backend/src/core/scheduler.py

@@ -10,7 +10,6 @@ from apscheduler.schedulers.background import BackgroundScheduler
 from apscheduler.triggers.cron import CronTrigger
 from .logger import logger, belief_scope
 from .config_manager import ConfigManager
-from typing import Optional
 import asyncio
 # [/SECTION]
 

backend/src/core/superset_client.py

@@ -13,10 +13,10 @@
 import json
 import zipfile
 from pathlib import Path
-from typing import Any, Dict, List, Optional, Tuple, Union, cast
+from typing import Dict, List, Optional, Tuple, Union, cast
 from requests import Response
 from .logger import logger as app_logger, belief_scope
-from .utils.network import APIClient, SupersetAPIError, AuthenticationError, DashboardNotFoundError, NetworkError
+from .utils.network import APIClient, SupersetAPIError
 from .utils.fileio import get_filename_from_headers
 from .config_models import Environment
 # [/SECTION]
@@ -212,6 +212,30 @@ class SupersetClient:
             return total_count, paginated_data
     # [/DEF:get_datasets:Function]
 
+    # [DEF:get_datasets_summary:Function]
+    # @PURPOSE: Fetches dataset metadata optimized for the Dataset Hub grid.
+    # @PRE: Client is authenticated.
+    # @POST: Returns a list of dataset metadata summaries.
+    # @RETURN: List[Dict]
+    def get_datasets_summary(self) -> List[Dict]:
+        with belief_scope("SupersetClient.get_datasets_summary"):
+            query = {
+                "columns": ["id", "table_name", "schema", "database"]
+            }
+            _, datasets = self.get_datasets(query=query)
+
+            # Map fields to match the contracts
+            result = []
+            for ds in datasets:
+                result.append({
+                    "id": ds.get("id"),
+                    "table_name": ds.get("table_name"),
+                    "schema": ds.get("schema"),
+                    "database": ds.get("database", {}).get("database_name", "Unknown")
+                })
+            return result
+    # [/DEF:get_datasets_summary:Function]
+
     # [DEF:get_dataset:Function]
     # @PURPOSE: Получает информацию о конкретном датасете по его ID.
     # @PARAM: dataset_id (int) - ID датасета.

backend/src/core/task_manager/cleanup.py

@@ -5,7 +5,6 @@
 # @LAYER: Core
 # @RELATION: Uses TaskPersistenceService and TaskLogPersistenceService to delete old tasks and logs.
 
-from datetime import datetime, timedelta
 from typing import List
 from .persistence import TaskPersistenceService, TaskLogPersistenceService
 from ..logger import logger, belief_scope

backend/src/core/task_manager/context.py

@@ -7,7 +7,7 @@
 # @INVARIANT: Each TaskContext is bound to a single task execution.
 
 # [SECTION: IMPORTS]
-from typing import Dict, Any, Optional, Callable
+from typing import Dict, Any, Callable
 from .task_logger import TaskLogger
 # [/SECTION]
 

backend/src/core/task_manager/manager.py

@@ -14,7 +14,7 @@ from concurrent.futures import ThreadPoolExecutor
 from datetime import datetime
 from typing import Dict, Any, List, Optional
 
-from .models import Task, TaskStatus, LogEntry, LogFilter, LogStats, TaskLog
+from .models import Task, TaskStatus, LogEntry, LogFilter, LogStats
 from .persistence import TaskPersistenceService, TaskLogPersistenceService
 from .context import TaskContext
 from ..logger import logger, belief_scope, should_log_task_level
@@ -136,7 +136,7 @@ class TaskManager:
                 logger.error(f"Plugin with ID '{plugin_id}' not found.")
                 raise ValueError(f"Plugin with ID '{plugin_id}' not found.")
 
-            plugin = self.plugin_loader.get_plugin(plugin_id)
+            self.plugin_loader.get_plugin(plugin_id)
             
             if not isinstance(params, dict):
                  logger.error("Task parameters must be a dictionary.")
@@ -248,7 +248,8 @@ class TaskManager:
     async def wait_for_resolution(self, task_id: str):
         with belief_scope("TaskManager.wait_for_resolution", f"task_id={task_id}"):
             task = self.tasks.get(task_id)
-            if not task: return
+            if not task:
+                return
             
             task.status = TaskStatus.AWAITING_MAPPING
             self.persistence_service.persist_task(task)
@@ -269,7 +270,8 @@ class TaskManager:
     async def wait_for_input(self, task_id: str):
         with belief_scope("TaskManager.wait_for_input", f"task_id={task_id}"):
             task = self.tasks.get(task_id)
-            if not task: return
+            if not task:
+                return
             
             # Status is already set to AWAITING_INPUT by await_input()
             self.task_futures[task_id] = self.loop.create_future()

backend/src/core/task_manager/persistence.py

@@ -7,11 +7,10 @@
 
 # [SECTION: IMPORTS]
 from datetime import datetime
-from typing import List, Optional, Dict, Any
+from typing import List, Optional
 import json
 
 from sqlalchemy.orm import Session
-from sqlalchemy import and_, or_
 from ...models.task import TaskRecord, TaskLogRecord
 from ..database import TasksSessionLocal
 from .models import Task, TaskStatus, LogEntry, TaskLog, LogFilter, LogStats

backend/src/core/task_manager/task_logger.py

@@ -8,7 +8,6 @@
 
 # [SECTION: IMPORTS]
 from typing import Dict, Any, Optional, Callable
-from datetime import datetime
 # [/SECTION]
 
 # [DEF:TaskLogger:Class]

backend/src/core/utils/dataset_mapper.py

@@ -11,7 +11,7 @@
 # [SECTION: IMPORTS]
 import pandas as pd  # type: ignore
 import psycopg2  # type: ignore
-from typing import Dict, List, Optional, Any
+from typing import Dict, Optional, Any
 from ..logger import logger as app_logger, belief_scope
 # [/SECTION]
 

backend/src/core/utils/fileio.py

@@ -19,7 +19,6 @@ from datetime import date, datetime
 import shutil
 import zlib
 from dataclasses import dataclass
-import yaml
 from ..logger import logger as app_logger, belief_scope
 # [/SECTION]
 

backend/src/core/utils/network.py

@@ -177,7 +177,8 @@ class APIClient:
     # @POST: Returns headers including auth tokens.
     def headers(self) -> Dict[str, str]:
         with belief_scope("headers"):
-            if not self._authenticated: self.authenticate()
+            if not self._authenticated:
+                self.authenticate()
             return {
             "Authorization": f"Bearer {self._tokens['access_token']}",
             "X-CSRFToken": self._tokens.get("csrf_token", ""),
@@ -200,7 +201,8 @@ class APIClient:
         with belief_scope("request"):
             full_url = f"{self.base_url}{endpoint}"
         _headers = self.headers.copy()
-        if headers: _headers.update(headers)
+        if headers:
+            _headers.update(headers)
         
         try:
             response = self.session.request(method, full_url, headers=_headers, **kwargs)
@@ -223,9 +225,12 @@ class APIClient:
             status_code = e.response.status_code
         if status_code == 502 or status_code == 503 or status_code == 504:
             raise NetworkError(f"Environment unavailable (Status {status_code})", status_code=status_code) from e
-        if status_code == 404: raise DashboardNotFoundError(endpoint) from e
-        if status_code == 403: raise PermissionDeniedError() from e
-        if status_code == 401: raise AuthenticationError() from e
+        if status_code == 404:
+            raise DashboardNotFoundError(endpoint) from e
+        if status_code == 403:
+            raise PermissionDeniedError() from e
+        if status_code == 401:
+            raise AuthenticationError() from e
         raise SupersetAPIError(f"API Error {status_code}: {e.response.text}") from e
     # [/DEF:_handle_http_error:Function]
 
@@ -237,9 +242,12 @@ class APIClient:
     # @POST: Raises a NetworkError.
     def _handle_network_error(self, e: requests.exceptions.RequestException, url: str):
         with belief_scope("_handle_network_error"):
-            if isinstance(e, requests.exceptions.Timeout): msg = "Request timeout"
-            elif isinstance(e, requests.exceptions.ConnectionError): msg = "Connection error"
-            else: msg = f"Unknown network error: {e}"
+            if isinstance(e, requests.exceptions.Timeout):
+                msg = "Request timeout"
+            elif isinstance(e, requests.exceptions.ConnectionError):
+                msg = "Connection error"
+            else:
+                msg = f"Unknown network error: {e}"
             raise NetworkError(msg, url=url) from e
     # [/DEF:_handle_network_error:Function]
 
@@ -256,7 +264,9 @@ class APIClient:
     def upload_file(self, endpoint: str, file_info: Dict[str, Any], extra_data: Optional[Dict] = None, timeout: Optional[int] = None) -> Dict:
         with belief_scope("upload_file"):
             full_url = f"{self.base_url}{endpoint}"
-        _headers = self.headers.copy(); _headers.pop('Content-Type', None)
+            _headers = self.headers.copy()
+            _headers.pop('Content-Type', None)
+        
         
         file_obj, file_name, form_field = file_info.get("file_obj"), file_info.get("file_name"), file_info.get("form_field", "file")
         

backend/src/dependencies.py

@@ -5,7 +5,6 @@
 # @RELATION: Used by the main app and API routers to get access to shared instances.
 
 from pathlib import Path
-from typing import Optional
 from fastapi import Depends, HTTPException, status
 from fastapi.security import OAuth2PasswordBearer
 from jose import JWTError
@@ -13,8 +12,9 @@ from .core.plugin_loader import PluginLoader
 from .core.task_manager import TaskManager
 from .core.config_manager import ConfigManager
 from .core.scheduler import SchedulerService
+from .services.resource_service import ResourceService
 from .core.database import init_db, get_auth_db
-from .core.logger import logger, belief_scope
+from .core.logger import logger
 from .core.auth.jwt import decode_token
 from .core.auth.repository import AuthRepository
 from .models.auth import User
@@ -50,6 +50,9 @@ logger.info("TaskManager initialized")
 scheduler_service = SchedulerService(task_manager, config_manager)
 logger.info("SchedulerService initialized")
 
+resource_service = ResourceService()
+logger.info("ResourceService initialized")
+
 # [DEF:get_plugin_loader:Function]
 # @PURPOSE: Dependency injector for the PluginLoader.
 # @PRE: Global plugin_loader must be initialized.
@@ -80,6 +83,16 @@ def get_scheduler_service() -> SchedulerService:
     return scheduler_service
 # [/DEF:get_scheduler_service:Function]
 
+# [DEF:get_resource_service:Function]
+# @PURPOSE: Dependency injector for the ResourceService.
+# @PRE: Global resource_service must be initialized.
+# @POST: Returns shared ResourceService instance.
+# @RETURN: ResourceService - The shared resource service instance.
+def get_resource_service() -> ResourceService:
+    """Dependency injector for the ResourceService."""
+    return resource_service
+# [/DEF:get_resource_service:Function]
+
 # [DEF:oauth2_scheme:Variable]
 # @PURPOSE: OAuth2 password bearer scheme for token extraction.
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")

backend/src/models/auth.py

@@ -11,7 +11,7 @@
 # [SECTION: IMPORTS]
 import uuid
 from datetime import datetime
-from sqlalchemy import Column, String, Boolean, DateTime, ForeignKey, Table, Enum
+from sqlalchemy import Column, String, Boolean, DateTime, ForeignKey, Table
 from sqlalchemy.orm import relationship
 from .mapping import Base
 # [/SECTION]

backend/src/models/git.py

@@ -8,7 +8,6 @@
 import enum
 from datetime import datetime
 from sqlalchemy import Column, String, Integer, DateTime, Enum, ForeignKey, Boolean
-from sqlalchemy.dialects.postgresql import UUID
 import uuid
 from src.core.database import Base
 

backend/src/models/llm.py

@@ -5,7 +5,7 @@
 # @LAYER: Domain
 # @RELATION: INHERITS_FROM -> backend.src.models.mapping.Base
 
-from sqlalchemy import Column, String, Boolean, DateTime, JSON, Enum, Text
+from sqlalchemy import Column, String, Boolean, DateTime, JSON, Text
 from datetime import datetime
 import uuid
 from .mapping import Base

backend/src/plugins/backup.py

@@ -95,7 +95,7 @@ class BackupPlugin(PluginBase):
         with belief_scope("get_schema"):
             config_manager = get_config_manager()
             envs = [e.name for e in config_manager.get_environments()]
-        default_path = config_manager.get_config().settings.storage.root_path
+        config_manager.get_config().settings.storage.root_path
         
         return {
             "type": "object",

backend/src/plugins/git/llm_extension.py

@@ -5,10 +5,9 @@
 # @LAYER: Domain
 # @RELATION: DEPENDS_ON -> backend.src.plugins.llm_analysis.service.LLMClient
 
-from typing import List, Optional
+from typing import List
 from tenacity import retry, stop_after_attempt, wait_exponential
 from ..llm_analysis.service import LLMClient
-from ..llm_analysis.models import LLMProviderType
 from ...core.logger import belief_scope, logger
 
 # [DEF:GitLLMExtension:Class]

backend/src/plugins/git_plugin.py

@@ -54,7 +54,7 @@ class GitPlugin(PluginBase):
                     self.config_manager = config_manager
                     app_logger.info("GitPlugin initialized using shared config_manager.")
                     return
-                except:
+                except Exception:
                     config_path = "config.json"
 
             self.config_manager = ConfigManager(config_path)
@@ -135,7 +135,7 @@ class GitPlugin(PluginBase):
     # @POST: Плагин готов к выполнению задач.
     async def initialize(self):
         with belief_scope("GitPlugin.initialize"):
-            logger.info("[GitPlugin.initialize][Action] Initializing Git Integration Plugin logic.")
+            app_logger.info("[GitPlugin.initialize][Action] Initializing Git Integration Plugin logic.")
 
     # [DEF:execute:Function]
     # @PURPOSE: Основной метод выполнения задач плагина с поддержкой TaskContext.
@@ -246,15 +246,15 @@ class GitPlugin(PluginBase):
                 # 5. Автоматический staging изменений (не коммит, чтобы юзер мог проверить diff)
                 try:
                     repo.git.add(A=True)
-                    logger.info(f"[_handle_sync][Action] Changes staged in git")
+                    app_logger.info("[_handle_sync][Action] Changes staged in git")
                 except Exception as ge:
-                    logger.warning(f"[_handle_sync][Action] Failed to stage changes: {ge}")
+                    app_logger.warning(f"[_handle_sync][Action] Failed to stage changes: {ge}")
 
-                logger.info(f"[_handle_sync][Coherence:OK] Dashboard {dashboard_id} synced successfully.")
+                app_logger.info(f"[_handle_sync][Coherence:OK] Dashboard {dashboard_id} synced successfully.")
                 return {"status": "success", "message": "Dashboard synced and flattened in local repository"}
 
             except Exception as e:
-                logger.error(f"[_handle_sync][Coherence:Failed] Sync failed: {e}")
+                app_logger.error(f"[_handle_sync][Coherence:Failed] Sync failed: {e}")
                 raise
     # [/DEF:_handle_sync:Function]
 
@@ -292,7 +292,8 @@ class GitPlugin(PluginBase):
                         if ".git" in dirs:
                             dirs.remove(".git")
                         for file in files:
-                            if file == ".git" or file.endswith(".zip"): continue
+                            if file == ".git" or file.endswith(".zip"):
+                                continue
                             file_path = Path(root) / file
                             # Prepend the root directory name to the archive path
                             arcname = Path(root_dir_name) / file_path.relative_to(repo_path)
@@ -315,16 +316,16 @@ class GitPlugin(PluginBase):
                     f.write(zip_buffer.getvalue())
                 
                 try:
-                    logger.info(f"[_handle_deploy][Action] Importing dashboard to {env.name}")
+                    app_logger.info(f"[_handle_deploy][Action] Importing dashboard to {env.name}")
                     result = client.import_dashboard(temp_zip_path)
-                    logger.info(f"[_handle_deploy][Coherence:OK] Deployment successful for dashboard {dashboard_id}.")
+                    app_logger.info(f"[_handle_deploy][Coherence:OK] Deployment successful for dashboard {dashboard_id}.")
                     return {"status": "success", "message": f"Dashboard deployed to {env.name}", "details": result}
                 finally:
                     if temp_zip_path.exists():
                         os.remove(temp_zip_path)
 
             except Exception as e:
-                logger.error(f"[_handle_deploy][Coherence:Failed] Deployment failed: {e}")
+                app_logger.error(f"[_handle_deploy][Coherence:Failed] Deployment failed: {e}")
                 raise
     # [/DEF:_handle_deploy:Function]
 
@@ -336,13 +337,13 @@ class GitPlugin(PluginBase):
     # @RETURN: Environment - Объект конфигурации окружения.
     def _get_env(self, env_id: Optional[str] = None):
         with belief_scope("GitPlugin._get_env"):
-            logger.info(f"[_get_env][Entry] Fetching environment for ID: {env_id}")
+            app_logger.info(f"[_get_env][Entry] Fetching environment for ID: {env_id}")
             
             # Priority 1: ConfigManager (config.json)
             if env_id:
                 env = self.config_manager.get_environment(env_id)
                 if env:
-                    logger.info(f"[_get_env][Exit] Found environment by ID in ConfigManager: {env.name}")
+                    app_logger.info(f"[_get_env][Exit] Found environment by ID in ConfigManager: {env.name}")
                     return env
             
             # Priority 2: Database (DeploymentEnvironment)
@@ -355,12 +356,12 @@ class GitPlugin(PluginBase):
                     db_env = db.query(DeploymentEnvironment).filter(DeploymentEnvironment.id == env_id).first()
                 else:
                     # If no ID, try to find active or any environment in DB
-                    db_env = db.query(DeploymentEnvironment).filter(DeploymentEnvironment.is_active == True).first()
+                    db_env = db.query(DeploymentEnvironment).filter(DeploymentEnvironment.is_active).first()
                     if not db_env:
                         db_env = db.query(DeploymentEnvironment).first()
 
                 if db_env:
-                    logger.info(f"[_get_env][Exit] Found environment in DB: {db_env.name}")
+                    app_logger.info(f"[_get_env][Exit] Found environment in DB: {db_env.name}")
                     from src.core.config_models import Environment
                     # Use token as password for SupersetClient
                     return Environment(
@@ -382,14 +383,14 @@ class GitPlugin(PluginBase):
                     # but we have other envs, maybe it's one of them?
                     env = next((e for e in envs if e.id == env_id), None)
                     if env:
-                        logger.info(f"[_get_env][Exit] Found environment {env_id} in ConfigManager list")
+                        app_logger.info(f"[_get_env][Exit] Found environment {env_id} in ConfigManager list")
                         return env
                 
                 if not env_id:
-                    logger.info(f"[_get_env][Exit] Using first environment from ConfigManager: {envs[0].name}")
+                    app_logger.info(f"[_get_env][Exit] Using first environment from ConfigManager: {envs[0].name}")
                     return envs[0]
                 
-            logger.error(f"[_get_env][Coherence:Failed] No environments configured (searched config.json and DB). env_id={env_id}")
+            app_logger.error(f"[_get_env][Coherence:Failed] No environments configured (searched config.json and DB). env_id={env_id}")
             raise ValueError("No environments configured. Please add a Superset Environment in Settings.")
     # [/DEF:_get_env:Function]
 

backend/src/plugins/llm_analysis/__init__.py

@@ -9,4 +9,6 @@ LLM Analysis Plugin for automated dashboard validation and dataset documentation
 
 from .plugin import DashboardValidationPlugin, DocumentationPlugin
 
+__all__ = ['DashboardValidationPlugin', 'DocumentationPlugin']
+
 # [/DEF:backend/src/plugins/llm_analysis/__init__.py:Module]

backend/src/plugins/llm_analysis/plugin.py

@@ -10,15 +10,13 @@
 # @RELATION: USES -> TaskContext
 # @INVARIANT: All LLM interactions must be executed as asynchronous tasks.
 
-from typing import Dict, Any, Optional, List
+from typing import Dict, Any, Optional
 import os
 import json
-import logging
 from datetime import datetime, timedelta
 from ...core.plugin_base import PluginBase
 from ...core.logger import belief_scope, logger
 from ...core.database import SessionLocal
-from ...core.config_manager import ConfigManager
 from ...services.llm_provider import LLMProviderService
 from ...core.superset_client import SupersetClient
 from .service import ScreenshotService, LLMClient
@@ -97,7 +95,7 @@ class DashboardValidationPlugin(PluginBase):
                     log.error(f"LLM Provider {provider_id} not found")
                     raise ValueError(f"LLM Provider {provider_id} not found")
                 
-                llm_log.debug(f"Retrieved provider config:")
+                llm_log.debug("Retrieved provider config:")
                 llm_log.debug(f"  Provider ID: {db_provider.id}")
                 llm_log.debug(f"  Provider Name: {db_provider.name}")
                 llm_log.debug(f"  Provider Type: {db_provider.provider_type}")
@@ -299,7 +297,7 @@ class DocumentationPlugin(PluginBase):
                     log.error(f"LLM Provider {provider_id} not found")
                     raise ValueError(f"LLM Provider {provider_id} not found")
                 
-                llm_log.debug(f"Retrieved provider config:")
+                llm_log.debug("Retrieved provider config:")
                 llm_log.debug(f"  Provider ID: {db_provider.id}")
                 llm_log.debug(f"  Provider Name: {db_provider.name}")
                 llm_log.debug(f"  Provider Type: {db_provider.provider_type}")

backend/src/plugins/llm_analysis/service.py

@@ -12,12 +12,12 @@ import asyncio
 import base64
 import json
 import io
-from typing import List, Optional, Dict, Any
+from typing import List, Dict, Any
 from PIL import Image
 from playwright.async_api import async_playwright
 from openai import AsyncOpenAI, RateLimitError, AuthenticationError as OpenAIAuthenticationError
 from tenacity import retry, stop_after_attempt, wait_exponential, retry_if_exception
-from .models import LLMProviderType, ValidationResult, ValidationStatus, DetectedIssue
+from .models import LLMProviderType
 from ...core.logger import belief_scope, logger
 from ...core.config_models import Environment
 
@@ -96,7 +96,7 @@ class ScreenshotService:
                     "password": ['input[name="password"]', 'input#password', 'input[placeholder*="Password"]', 'input[type="password"]'],
                     "submit": ['button[type="submit"]', 'button#submit', '.btn-primary', 'input[type="submit"]']
                 }
-                logger.info(f"[DEBUG] Attempting to find login form elements...")
+                logger.info("[DEBUG] Attempting to find login form elements...")
                 
                 try:
                     # Find and fill username
@@ -190,27 +190,27 @@ class ScreenshotService:
                 try:
                     # Wait for the dashboard grid to be present
                     await page.wait_for_selector('.dashboard-component, .dashboard-header, [data-test="dashboard-grid"]', timeout=30000)
-                    logger.info(f"[DEBUG] Dashboard container loaded")
+                    logger.info("[DEBUG] Dashboard container loaded")
                     
                     # Wait for charts to finish loading (Superset uses loading spinners/skeletons)
                     # We wait until loading indicators disappear or a timeout occurs
                     try:
                         # Wait for loading indicators to disappear
                         await page.wait_for_selector('.loading, .ant-skeleton, .spinner', state="hidden", timeout=60000)
-                        logger.info(f"[DEBUG] Loading indicators hidden")
-                    except:
-                        logger.warning(f"[DEBUG] Timeout waiting for loading indicators to hide")
+                        logger.info("[DEBUG] Loading indicators hidden")
+                    except Exception:
+                        logger.warning("[DEBUG] Timeout waiting for loading indicators to hide")
 
                     # Wait for charts to actually render their content (e.g., ECharts, NVD3)
                     # We look for common chart containers that should have content
                     try:
                         await page.wait_for_selector('.chart-container canvas, .slice_container svg, .superset-chart-canvas, .grid-content .chart-container', timeout=60000)
-                        logger.info(f"[DEBUG] Chart content detected")
-                    except:
-                        logger.warning(f"[DEBUG] Timeout waiting for chart content")
+                        logger.info("[DEBUG] Chart content detected")
+                    except Exception:
+                        logger.warning("[DEBUG] Timeout waiting for chart content")
 
                     # Additional check: wait for all chart containers to have non-empty content
-                    logger.info(f"[DEBUG] Waiting for all charts to have rendered content...")
+                    logger.info("[DEBUG] Waiting for all charts to have rendered content...")
                     await page.wait_for_function("""() => {
                         const charts = document.querySelectorAll('.chart-container, .slice_container');
                         if (charts.length === 0) return true; // No charts to wait for
@@ -223,10 +223,10 @@ class ScreenshotService:
                             return hasCanvas || hasSvg || hasContent;
                         });
                     }""", timeout=60000)
-                    logger.info(f"[DEBUG] All charts have rendered content")
+                    logger.info("[DEBUG] All charts have rendered content")
 
                     # Scroll to bottom and back to top to trigger lazy loading of all charts
-                    logger.info(f"[DEBUG] Scrolling to trigger lazy loading...")
+                    logger.info("[DEBUG] Scrolling to trigger lazy loading...")
                     await page.evaluate("""async () => {
                         const delay = ms => new Promise(resolve => setTimeout(resolve, ms));
                         for (let i = 0; i < document.body.scrollHeight; i += 500) {
@@ -241,7 +241,7 @@ class ScreenshotService:
                     logger.warning(f"[DEBUG] Dashboard content wait failed: {e}, proceeding anyway after delay")
                 
                 # Final stabilization delay - increased for complex dashboards
-                logger.info(f"[DEBUG] Final stabilization delay...")
+                logger.info("[DEBUG] Final stabilization delay...")
                 await asyncio.sleep(15)
 
                 # Logic to handle tabs and full-page capture
@@ -251,7 +251,8 @@ class ScreenshotService:
                     processed_tabs = set()
 
                     async def switch_tabs(depth=0):
-                        if depth > 3: return # Limit recursion depth
+                        if depth > 3:
+                            return # Limit recursion depth
                         
                         tab_selectors = [
                             '.ant-tabs-nav-list .ant-tabs-tab',
@@ -262,7 +263,8 @@ class ScreenshotService:
                         found_tabs = []
                         for selector in tab_selectors:
                             found_tabs = await page.locator(selector).all()
-                            if found_tabs: break
+                            if found_tabs:
+                                break
                             
                         if found_tabs:
                             logger.info(f"[DEBUG][TabSwitching] Found {len(found_tabs)} tabs at depth {depth}")
@@ -292,7 +294,8 @@ class ScreenshotService:
                                 if "ant-tabs-tab-active" not in (await first_tab.get_attribute("class") or ""):
                                     await first_tab.click()
                                     await asyncio.sleep(1)
-                            except: pass
+                            except Exception:
+                                pass
 
                     await switch_tabs()
 
@@ -423,7 +426,7 @@ class LLMClient:
         self.default_model = default_model
         
         # DEBUG: Log initialization parameters (without exposing full API key)
-        logger.info(f"[LLMClient.__init__] Initializing LLM client:")
+        logger.info("[LLMClient.__init__] Initializing LLM client:")
         logger.info(f"[LLMClient.__init__]   Provider Type: {provider_type}")
         logger.info(f"[LLMClient.__init__]   Base URL: {base_url}")
         logger.info(f"[LLMClient.__init__]   Default Model: {default_model}")

backend/src/plugins/migration.py

@@ -7,15 +7,13 @@
 # @RELATION: DEPENDS_ON -> superset_tool.utils
 # @RELATION: USES -> TaskContext
 
-from typing import Dict, Any, List, Optional
-from pathlib import Path
-import zipfile
+from typing import Dict, Any, Optional
 import re
 
 from ..core.plugin_base import PluginBase
 from ..core.logger import belief_scope, logger as app_logger
 from ..core.superset_client import SupersetClient
-from ..core.utils.fileio import create_temp_file, update_yamls, create_dashboard_export
+from ..core.utils.fileio import create_temp_file
 from ..dependencies import get_config_manager
 from ..core.migration_engine import MigrationEngine
 from ..core.database import SessionLocal
@@ -151,8 +149,8 @@ class MigrationPlugin(PluginBase):
         dashboard_regex = params.get("dashboard_regex")
         
         replace_db_config = params.get("replace_db_config", False)
-        from_db_id = params.get("from_db_id")
-        to_db_id = params.get("to_db_id")
+        params.get("from_db_id")
+        params.get("to_db_id")
         
         # [DEF:MigrationPlugin.execute:Action]
         # @PURPOSE: Execute the migration logic with proper task logging.
@@ -301,7 +299,7 @@ class MigrationPlugin(PluginBase):
                              if match_alt:
                                  db_name = match_alt.group(1)
 
-                        logger.warning(f"[MigrationPlugin][Action] Detected missing password for database: {db_name}")
+                        app_logger.warning(f"[MigrationPlugin][Action] Detected missing password for database: {db_name}")
                         
                         if task_id:
                             input_request = {
@@ -320,19 +318,19 @@ class MigrationPlugin(PluginBase):
                             
                             # Retry import with password
                             if passwords:
-                                logger.info(f"[MigrationPlugin][Action] Retrying import for {title} with provided passwords.")
+                                app_logger.info(f"[MigrationPlugin][Action] Retrying import for {title} with provided passwords.")
                                 to_c.import_dashboard(file_name=tmp_new_zip, dash_id=dash_id, dash_slug=dash_slug, passwords=passwords)
-                                logger.info(f"[MigrationPlugin][Success] Dashboard {title} imported after password injection.")
+                                app_logger.info(f"[MigrationPlugin][Success] Dashboard {title} imported after password injection.")
                                 # Clear passwords from params after use for security
                                 if "passwords" in task.params:
                                     del task.params["passwords"]
                                 continue
 
-                    logger.error(f"[MigrationPlugin][Failure] Failed to migrate dashboard {title}: {exc}", exc_info=True)
+                    app_logger.error(f"[MigrationPlugin][Failure] Failed to migrate dashboard {title}: {exc}", exc_info=True)
 
-                logger.info("[MigrationPlugin][Exit] Migration finished.")
+                app_logger.info("[MigrationPlugin][Exit] Migration finished.")
         except Exception as e:
-            logger.critical(f"[MigrationPlugin][Failure] Fatal error during migration: {e}", exc_info=True)
+            app_logger.critical(f"[MigrationPlugin][Failure] Fatal error during migration: {e}", exc_info=True)
             raise e
         # [/DEF:MigrationPlugin.execute:Action]
     # [/DEF:execute:Function]

backend/src/plugins/search.py

@@ -8,7 +8,7 @@
 
 # [SECTION: IMPORTS]
 import re
-from typing import Dict, Any, List, Optional
+from typing import Dict, Any, Optional
 from ..core.plugin_base import PluginBase
 from ..core.superset_client import SupersetClient
 from ..core.logger import logger, belief_scope
@@ -116,7 +116,7 @@ class SearchPlugin(PluginBase):
             log = context.logger if context else logger
             
             # Create sub-loggers for different components
-            superset_log = log.with_source("superset_api") if context else log
+            log.with_source("superset_api") if context else log
             search_log = log.with_source("search") if context else log
             
             if not env_name or not search_query:

backend/src/plugins/storage/plugin.py

@@ -19,7 +19,7 @@ from fastapi import UploadFile
 
 from ...core.plugin_base import PluginBase
 from ...core.logger import belief_scope, logger
-from ...models.storage import StoredFile, FileCategory, StorageConfig
+from ...models.storage import StoredFile, FileCategory
 from ...dependencies import get_config_manager
 from ...core.task_manager.context import TaskContext
 # [/SECTION]
@@ -126,7 +126,7 @@ class StoragePlugin(PluginBase):
             
             # Create sub-loggers for different components
             storage_log = log.with_source("storage") if context else log
-            filesystem_log = log.with_source("filesystem") if context else log
+            log.with_source("filesystem") if context else log
             
             storage_log.info(f"Executing with params: {params}")
     # [/DEF:execute:Function]

backend/src/schemas/auth.py

@@ -10,7 +10,7 @@
 
 # [SECTION: IMPORTS]
 from typing import List, Optional
-from pydantic import BaseModel, EmailStr, Field
+from pydantic import BaseModel, EmailStr
 from datetime import datetime
 # [/SECTION]
 

backend/src/scripts/create_admin.py

@@ -20,7 +20,7 @@ sys.path.append(str(Path(__file__).parent.parent.parent))
 
 from src.core.database import AuthSessionLocal, init_db
 from src.core.auth.security import get_password_hash
-from src.models.auth import User, Role, Permission
+from src.models.auth import User, Role
 from src.core.logger import logger, belief_scope
 # [/SECTION]
 

backend/src/scripts/init_auth_db.py

@@ -9,13 +9,12 @@
 
 # [SECTION: IMPORTS]
 import sys
-import os
 from pathlib import Path
 
 # Add src to path
 sys.path.append(str(Path(__file__).parent.parent.parent))
 
-from src.core.database import init_db, auth_engine
+from src.core.database import init_db
 from src.core.logger import logger, belief_scope
 from src.scripts.seed_permissions import seed_permissions
 # [/SECTION]

backend/src/services/__init__.py

@@ -0,0 +1,18 @@
+# [DEF:backend.src.services:Module]
+# @TIER: STANDARD
+# @SEMANTICS: services, package, init
+# @PURPOSE: Package initialization for services module
+# @LAYER: Core
+# @RELATION: EXPORTS -> resource_service, mapping_service
+# @NOTE: Only export services that don't cause circular imports
+# @NOTE: GitService, AuthService, LLMProviderService have circular import issues - import directly when needed
+
+# Only export services that don't cause circular imports
+from .mapping_service import MappingService
+from .resource_service import ResourceService
+
+__all__ = [
+    'MappingService',
+    'ResourceService',
+]
+# [/DEF:backend.src.services:Module]

backend/src/services/auth_service.py

@@ -10,11 +10,11 @@
 # @INVARIANT: Authentication must verify both credentials and account status.
 
 # [SECTION: IMPORTS]
-from typing import Optional, Dict, Any, List
+from typing import Dict, Any
 from sqlalchemy.orm import Session
 from ..models.auth import User, Role
 from ..core.auth.repository import AuthRepository
-from ..core.auth.security import verify_password, get_password_hash
+from ..core.auth.security import verify_password
 from ..core.auth.jwt import create_access_token
 from ..core.logger import belief_scope
 # [/SECTION]

backend/src/services/git_service.py

@@ -10,11 +10,10 @@
 # @INVARIANT: All Git operations must be performed on a valid local directory.
 
 import os
-import shutil
 import httpx
-from git import Repo, RemoteProgress
+from git import Repo
 from fastapi import HTTPException
-from typing import List, Optional
+from typing import List
 from datetime import datetime
 from src.core.logger import logger, belief_scope
 from src.models.git import GitProvider
@@ -167,7 +166,7 @@ class GitService:
             
             # Handle empty repository case (no commits)
             if not repo.heads and not repo.remotes:
-                logger.warning(f"[create_branch][Action] Repository is empty. Creating initial commit to enable branching.")
+                logger.warning("[create_branch][Action] Repository is empty. Creating initial commit to enable branching.")
                 readme_path = os.path.join(repo.working_dir, "README.md")
                 if not os.path.exists(readme_path):
                     with open(readme_path, "w") as f:
@@ -178,7 +177,7 @@ class GitService:
             # Verify source branch exists
             try:
                 repo.commit(from_branch)
-            except:
+            except Exception:
                 logger.warning(f"[create_branch][Action] Source branch {from_branch} not found, using HEAD")
                 from_branch = repo.head
 

backend/src/services/llm_provider.py

@@ -9,7 +9,7 @@
 from typing import List, Optional
 from sqlalchemy.orm import Session
 from ..models.llm import LLMProvider
-from ..plugins.llm_analysis.models import LLMProviderConfig, LLMProviderType
+from ..plugins.llm_analysis.models import LLMProviderConfig
 from ..core.logger import belief_scope, logger
 from cryptography.fernet import Fernet
 import os

backend/src/services/resource_service.py

@@ -0,0 +1,251 @@
+# [DEF:backend.src.services.resource_service:Module]
+# @TIER: STANDARD
+# @SEMANTICS: service, resources, dashboards, datasets, tasks, git
+# @PURPOSE:   Shared service for fetching resource data with Git status and task status
+# @LAYER:     Service
+# @RELATION:  DEPENDS_ON -> backend.src.core.superset_client
+# @RELATION:  DEPENDS_ON -> backend.src.core.task_manager
+# @RELATION:  DEPENDS_ON -> backend.src.services.git_service
+# @INVARIANT: All resources include metadata about their current state
+
+# [SECTION: IMPORTS]
+from typing import List, Dict, Optional, Any
+from ..core.superset_client import SupersetClient
+from ..core.task_manager.models import Task
+from ..services.git_service import GitService
+from ..core.logger import logger, belief_scope
+# [/SECTION]
+
+# [DEF:ResourceService:Class]
+# @PURPOSE: Provides centralized access to resource data with enhanced metadata
+class ResourceService:
+    
+    # [DEF:__init__:Function]
+    # @PURPOSE: Initialize the resource service with dependencies
+    # @PRE: None
+    # @POST: ResourceService is ready to fetch resources
+    def __init__(self):
+        with belief_scope("ResourceService.__init__"):
+            self.git_service = GitService()
+            logger.info("[ResourceService][Action] Initialized ResourceService")
+    # [/DEF:__init__:Function]
+    
+    # [DEF:get_dashboards_with_status:Function]
+    # @PURPOSE: Fetch dashboards from environment with Git status and last task status
+    # @PRE: env is a valid Environment object
+    # @POST: Returns list of dashboards with enhanced metadata
+    # @PARAM: env (Environment) - The environment to fetch from
+    # @PARAM: tasks (List[Task]) - List of tasks to check for status
+    # @RETURN: List[Dict] - Dashboards with git_status and last_task fields
+    # @RELATION: CALLS -> SupersetClient.get_dashboards_summary
+    # @RELATION: CALLS -> self._get_git_status_for_dashboard
+    # @RELATION: CALLS -> self._get_last_task_for_resource
+    async def get_dashboards_with_status(
+        self, 
+        env: Any, 
+        tasks: Optional[List[Task]] = None
+    ) -> List[Dict[str, Any]]:
+        with belief_scope("get_dashboards_with_status", f"env={env.id}"):
+            client = SupersetClient(env)
+            dashboards = client.get_dashboards_summary()
+            
+            # Enhance each dashboard with Git status and task status
+            result = []
+            for dashboard in dashboards:
+                # dashboard is already a dict, no need to call .dict()
+                dashboard_dict = dashboard
+                dashboard_id = dashboard_dict.get('id')
+                
+                # Get Git status if repo exists
+                git_status = self._get_git_status_for_dashboard(dashboard_id)
+                dashboard_dict['git_status'] = git_status
+                
+                # Get last task status
+                last_task = self._get_last_task_for_resource(
+                    f"dashboard-{dashboard_id}", 
+                    tasks
+                )
+                dashboard_dict['last_task'] = last_task
+                
+                result.append(dashboard_dict)
+            
+            logger.info(f"[ResourceService][Coherence:OK] Fetched {len(result)} dashboards with status")
+            return result
+    # [/DEF:get_dashboards_with_status:Function]
+    
+    # [DEF:get_datasets_with_status:Function]
+    # @PURPOSE: Fetch datasets from environment with mapping progress and last task status
+    # @PRE: env is a valid Environment object
+    # @POST: Returns list of datasets with enhanced metadata
+    # @PARAM: env (Environment) - The environment to fetch from
+    # @PARAM: tasks (List[Task]) - List of tasks to check for status
+    # @RETURN: List[Dict] - Datasets with mapped_fields and last_task fields
+    # @RELATION: CALLS -> SupersetClient.get_datasets_summary
+    # @RELATION: CALLS -> self._get_last_task_for_resource
+    async def get_datasets_with_status(
+        self, 
+        env: Any, 
+        tasks: Optional[List[Task]] = None
+    ) -> List[Dict[str, Any]]:
+        with belief_scope("get_datasets_with_status", f"env={env.id}"):
+            client = SupersetClient(env)
+            datasets = client.get_datasets_summary()
+            
+            # Enhance each dataset with task status
+            result = []
+            for dataset in datasets:
+                # dataset is already a dict, no need to call .dict()
+                dataset_dict = dataset
+                dataset_id = dataset_dict.get('id')
+                
+                # Get last task status
+                last_task = self._get_last_task_for_resource(
+                    f"dataset-{dataset_id}", 
+                    tasks
+                )
+                dataset_dict['last_task'] = last_task
+                
+                result.append(dataset_dict)
+            
+            logger.info(f"[ResourceService][Coherence:OK] Fetched {len(result)} datasets with status")
+            return result
+    # [/DEF:get_datasets_with_status:Function]
+    
+    # [DEF:get_activity_summary:Function]
+    # @PURPOSE: Get summary of active and recent tasks for the activity indicator
+    # @PRE: tasks is a list of Task objects
+    # @POST: Returns summary with active_count and recent_tasks
+    # @PARAM: tasks (List[Task]) - List of tasks to summarize
+    # @RETURN: Dict - Activity summary
+    def get_activity_summary(self, tasks: List[Task]) -> Dict[str, Any]:
+        with belief_scope("get_activity_summary"):
+            # Count active (RUNNING, WAITING_INPUT) tasks
+            active_tasks = [
+                t for t in tasks 
+                if t.status in ['RUNNING', 'WAITING_INPUT']
+            ]
+            
+            # Get recent tasks (last 5)
+            recent_tasks = sorted(
+                tasks, 
+                key=lambda t: t.created_at, 
+                reverse=True
+            )[:5]
+            
+            # Format recent tasks for frontend
+            recent_tasks_formatted = []
+            for task in recent_tasks:
+                resource_name = self._extract_resource_name_from_task(task)
+                recent_tasks_formatted.append({
+                    'task_id': str(task.id),
+                    'resource_name': resource_name,
+                    'resource_type': self._extract_resource_type_from_task(task),
+                    'status': task.status,
+                    'started_at': task.created_at.isoformat() if task.created_at else None
+                })
+            
+            return {
+                'active_count': len(active_tasks),
+                'recent_tasks': recent_tasks_formatted
+            }
+    # [/DEF:get_activity_summary:Function]
+    
+    # [DEF:_get_git_status_for_dashboard:Function]
+    # @PURPOSE: Get Git sync status for a dashboard
+    # @PRE: dashboard_id is a valid integer
+    # @POST: Returns git status or None if no repo exists
+    # @PARAM: dashboard_id (int) - The dashboard ID
+    # @RETURN: Optional[Dict] - Git status with branch and sync_status
+    # @RELATION: CALLS -> GitService.get_repo
+    def _get_git_status_for_dashboard(self, dashboard_id: int) -> Optional[Dict[str, Any]]:
+        try:
+            repo = self.git_service.get_repo(dashboard_id)
+            if not repo:
+                return None
+            
+            # Check if there are uncommitted changes
+            try:
+                # Get current branch
+                branch = repo.active_branch.name
+                
+                # Check for uncommitted changes
+                is_dirty = repo.is_dirty()
+                
+                # Check for unpushed commits
+                unpushed = len(list(repo.iter_commits(f'{branch}@{{u}}..{branch}'))) if '@{u}' in str(repo.refs) else 0
+                
+                if is_dirty or unpushed > 0:
+                    sync_status = 'DIFF'
+                else:
+                    sync_status = 'OK'
+                
+                return {
+                    'branch': branch,
+                    'sync_status': sync_status
+                }
+            except Exception:
+                logger.warning(f"[ResourceService][Warning] Failed to get git status for dashboard {dashboard_id}")
+                return None
+        except Exception:
+            # No repo exists for this dashboard
+            return None
+    # [/DEF:_get_git_status_for_dashboard:Function]
+    
+    # [DEF:_get_last_task_for_resource:Function]
+    # @PURPOSE: Get the most recent task for a specific resource
+    # @PRE: resource_id is a valid string
+    # @POST: Returns task summary or None if no tasks found
+    # @PARAM: resource_id (str) - The resource identifier (e.g., "dashboard-123")
+    # @PARAM: tasks (Optional[List[Task]]) - List of tasks to search
+    # @RETURN: Optional[Dict] - Task summary with task_id and status
+    def _get_last_task_for_resource(
+        self,
+        resource_id: str,
+        tasks: Optional[List[Task]] = None
+    ) -> Optional[Dict[str, Any]]:
+        if not tasks:
+            return None
+        
+        # Filter tasks for this resource
+        resource_tasks = []
+        for task in tasks:
+            params = task.params or {}
+            if params.get('resource_id') == resource_id:
+                resource_tasks.append(task)
+        
+        if not resource_tasks:
+            return None
+        
+        # Get most recent task
+        last_task = max(resource_tasks, key=lambda t: t.created_at)
+        
+        return {
+            'task_id': str(last_task.id),
+            'status': last_task.status
+        }
+    # [/DEF:_get_last_task_for_resource:Function]
+    
+    # [DEF:_extract_resource_name_from_task:Function]
+    # @PURPOSE: Extract resource name from task params
+    # @PRE: task is a valid Task object
+    # @POST: Returns resource name or task ID
+    # @PARAM: task (Task) - The task to extract from
+    # @RETURN: str - Resource name or fallback
+    def _extract_resource_name_from_task(self, task: Task) -> str:
+        params = task.params or {}
+        return params.get('resource_name', f"Task {task.id}")
+    # [/DEF:_extract_resource_name_from_task:Function]
+    
+    # [DEF:_extract_resource_type_from_task:Function]
+    # @PURPOSE: Extract resource type from task params
+    # @PRE: task is a valid Task object
+    # @POST: Returns resource type or 'unknown'
+    # @PARAM: task (Task) - The task to extract from
+    # @RETURN: str - Resource type
+    def _extract_resource_type_from_task(self, task: Task) -> str:
+        params = task.params or {}
+        return params.get('resource_type', 'unknown')
+    # [/DEF:_extract_resource_type_from_task:Function]
+
+# [/DEF:ResourceService:Class]
+# [/DEF:backend.src.services.resource_service:Module]

backend/test_auth_debug.py

@@ -1,8 +1,6 @@
 #!/usr/bin/env python3
 """Debug script to test Superset API authentication"""
 
-import json
-import requests
 from pprint import pprint
 from src.core.superset_client import SupersetClient
 from src.core.config_manager import ConfigManager
@@ -53,7 +51,7 @@ def main():
         print("\n--- Response Headers ---")
         pprint(dict(ui_response.headers))
         
-        print(f"\n--- Response Content Preview (200 chars) ---")
+        print("\n--- Response Content Preview (200 chars) ---")
         print(repr(ui_response.text[:200]))
         
         if ui_response.status_code == 200:

backend/test_decryption.py

@@ -19,17 +19,17 @@ db = SessionLocal()
 provider = db.query(LLMProvider).filter(LLMProvider.id == '6c899741-4108-4196-aea4-f38ad2f0150e').first()
 
 if provider:
-    print(f"\nProvider found:")
+    print("\nProvider found:")
     print(f"  ID: {provider.id}")
     print(f"  Name: {provider.name}")
     print(f"  Encrypted API Key (first 50 chars): {provider.api_key[:50]}")
     print(f"  Encrypted API Key Length: {len(provider.api_key)}")
     
     # Test decryption
-    print(f"\nAttempting decryption...")
+    print("\nAttempting decryption...")
     try:
         decrypted = fernet.decrypt(provider.api_key.encode()).decode()
-        print(f"Decryption successful!")
+        print("Decryption successful!")
         print(f"  Decrypted key length: {len(decrypted)}")
         print(f"  Decrypted key (first 8 chars): {decrypted[:8]}")
         print(f"  Decrypted key is empty: {len(decrypted) == 0}")

backend/tests/test_auth.py

@@ -1,5 +1,4 @@
 import sys
-import os
 from pathlib import Path
 
 # Add src to path
@@ -8,7 +7,7 @@ sys.path.append(str(Path(__file__).parent.parent / "src"))
 import pytest
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
-from src.core.database import Base, get_auth_db
+from src.core.database import Base
 from src.models.auth import User, Role, Permission, ADGroupMapping
 from src.services.auth_service import AuthService
 from src.core.auth.repository import AuthRepository

backend/tests/test_dashboards_api.py

@@ -0,0 +1,67 @@
+# [DEF:backend.tests.test_dashboards_api:Module]
+# @TIER: STANDARD
+# @PURPOSE: Contract-driven tests for Dashboard Hub API
+# @RELATION: TESTS -> backend.src.api.routes.dashboards
+
+from fastapi.testclient import TestClient
+from unittest.mock import MagicMock, patch
+from src.app import app
+from src.api.routes.dashboards import DashboardsResponse
+
+client = TestClient(app)
+
+# [DEF:test_get_dashboards_success:Function]
+# @TEST: GET /api/dashboards returns 200 and valid schema
+# @PRE: env_id exists
+# @POST: Response matches DashboardsResponse schema
+def test_get_dashboards_success():
+    with patch("src.api.routes.dashboards.get_config_manager") as mock_config, \
+         patch("src.api.routes.dashboards.get_resource_service") as mock_service, \
+         patch("src.api.routes.dashboards.has_permission") as mock_perm:
+        
+        # Mock environment
+        mock_env = MagicMock()
+        mock_env.id = "prod"
+        mock_config.return_value.get_environments.return_value = [mock_env]
+        
+        # Mock resource service response
+        mock_service.return_value.get_dashboards_with_status.return_value = [
+            {
+                "id": 1,
+                "title": "Sales Report",
+                "slug": "sales",
+                "git_status": {"branch": "main", "sync_status": "OK"},
+                "last_task": {"task_id": "task-1", "status": "SUCCESS"}
+            }
+        ]
+        
+        # Mock permission
+        mock_perm.return_value = lambda: True
+
+        response = client.get("/api/dashboards?env_id=prod")
+        
+        assert response.status_code == 200
+        data = response.json()
+        assert "dashboards" in data
+        assert len(data["dashboards"]) == 1
+        assert data["dashboards"][0]["title"] == "Sales Report"
+        # Validate against Pydantic model
+        DashboardsResponse(**data)
+
+# [DEF:test_get_dashboards_env_not_found:Function]
+# @TEST: GET /api/dashboards returns 404 if env_id missing
+# @PRE: env_id does not exist
+# @POST: Returns 404 error
+def test_get_dashboards_env_not_found():
+    with patch("src.api.routes.dashboards.get_config_manager") as mock_config, \
+         patch("src.api.routes.dashboards.has_permission") as mock_perm:
+        
+        mock_config.return_value.get_environments.return_value = []
+        mock_perm.return_value = lambda: True
+
+        response = client.get("/api/dashboards?env_id=nonexistent")
+        
+        assert response.status_code == 404
+        assert "Environment not found" in response.json()["detail"]
+
+# [/DEF:backend.tests.test_dashboards_api:Module]

backend/tests/test_log_persistence.py

@@ -6,9 +6,7 @@
 # @TIER: STANDARD
 
 # [SECTION: IMPORTS]
-import pytest
 from datetime import datetime
-from unittest.mock import Mock, patch, MagicMock
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 

backend/tests/test_logger.py

@@ -1,5 +1,4 @@
 import pytest
-import logging
 from src.core.logger import (
     belief_scope,
     logger,

backend/tests/test_models.py

@@ -1,4 +1,3 @@
-import pytest
 from src.core.config_models import Environment
 from src.core.logger import belief_scope
 

backend/tests/test_resource_hubs.py

@@ -0,0 +1,123 @@
+import pytest
+from fastapi.testclient import TestClient
+from unittest.mock import MagicMock
+from src.app import app
+from src.dependencies import get_config_manager, get_task_manager, get_resource_service, has_permission
+
+client = TestClient(app)
+
+# [DEF:test_dashboards_api:Test]
+# @PURPOSE: Verify GET /api/dashboards contract compliance
+# @TEST: Valid env_id returns 200 and dashboard list
+# @TEST: Invalid env_id returns 404
+# @TEST: Search filter works
+
+@pytest.fixture
+def mock_deps():
+    config_manager = MagicMock()
+    task_manager = MagicMock()
+    resource_service = MagicMock()
+    
+    # Mock environment
+    env = MagicMock()
+    env.id = "env1"
+    config_manager.get_environments.return_value = [env]
+    
+    # Mock tasks
+    task_manager.get_all_tasks.return_value = []
+    
+    # Mock dashboards
+    resource_service.get_dashboards_with_status.return_value = [
+        {"id": 1, "title": "Sales", "slug": "sales", "git_status": {"branch": "main", "sync_status": "OK"}, "last_task": None},
+        {"id": 2, "title": "Marketing", "slug": "mkt", "git_status": None, "last_task": {"task_id": "t1", "status": "SUCCESS"}}
+    ]
+    
+    app.dependency_overrides[get_config_manager] = lambda: config_manager
+    app.dependency_overrides[get_task_manager] = lambda: task_manager
+    app.dependency_overrides[get_resource_service] = lambda: resource_service
+    
+    # Bypass permission check
+    mock_user = MagicMock()
+    mock_user.username = "testadmin"
+    
+    # Override both get_current_user and has_permission
+    from src.dependencies import get_current_user
+    app.dependency_overrides[get_current_user] = lambda: mock_user
+    
+    # We need to override the specific instance returned by has_permission
+    app.dependency_overrides[has_permission("plugin:migration", "READ")] = lambda: mock_user
+    
+    yield {
+        "config": config_manager,
+        "task": task_manager,
+        "resource": resource_service
+    }
+    
+    app.dependency_overrides.clear()
+
+def test_get_dashboards_success(mock_deps):
+    response = client.get("/api/dashboards?env_id=env1")
+    assert response.status_code == 200
+    data = response.json()
+    assert "dashboards" in data
+    assert len(data["dashboards"]) == 2
+    assert data["dashboards"][0]["title"] == "Sales"
+    assert data["dashboards"][0]["git_status"]["sync_status"] == "OK"
+
+def test_get_dashboards_not_found(mock_deps):
+    response = client.get("/api/dashboards?env_id=invalid")
+    assert response.status_code == 404
+
+def test_get_dashboards_search(mock_deps):
+    response = client.get("/api/dashboards?env_id=env1&search=Sales")
+    assert response.status_code == 200
+    data = response.json()
+    assert len(data["dashboards"]) == 1
+    assert data["dashboards"][0]["title"] == "Sales"
+
+# [/DEF:test_dashboards_api:Test]
+
+# [DEF:test_datasets_api:Test]
+# @PURPOSE: Verify GET /api/datasets contract compliance
+# @TEST: Valid env_id returns 200 and dataset list
+# @TEST: Invalid env_id returns 404
+# @TEST: Search filter works
+# @TEST: Negative - Service failure returns 503
+
+def test_get_datasets_success(mock_deps):
+    mock_deps["resource"].get_datasets_with_status.return_value = [
+        {"id": 1, "table_name": "orders", "schema": "public", "database": "db1", "mapped_fields": {"total": 10, "mapped": 5}, "last_task": None}
+    ]
+    
+    response = client.get("/api/datasets?env_id=env1")
+    assert response.status_code == 200
+    data = response.json()
+    assert "datasets" in data
+    assert len(data["datasets"]) == 1
+    assert data["datasets"][0]["table_name"] == "orders"
+    assert data["datasets"][0]["mapped_fields"]["mapped"] == 5
+
+def test_get_datasets_not_found(mock_deps):
+    response = client.get("/api/datasets?env_id=invalid")
+    assert response.status_code == 404
+
+def test_get_datasets_search(mock_deps):
+    mock_deps["resource"].get_datasets_with_status.return_value = [
+        {"id": 1, "table_name": "orders", "schema": "public", "database": "db1", "mapped_fields": {"total": 10, "mapped": 5}, "last_task": None},
+        {"id": 2, "table_name": "users", "schema": "public", "database": "db1", "mapped_fields": {"total": 5, "mapped": 5}, "last_task": None}
+    ]
+    
+    response = client.get("/api/datasets?env_id=env1&search=orders")
+    assert response.status_code == 200
+    data = response.json()
+    assert len(data["datasets"]) == 1
+    assert data["datasets"][0]["table_name"] == "orders"
+
+def test_get_datasets_service_failure(mock_deps):
+    mock_deps["resource"].get_datasets_with_status.side_effect = Exception("Superset down")
+    
+    response = client.get("/api/datasets?env_id=env1")
+    assert response.status_code == 503
+    assert "Failed to fetch datasets" in response.json()["detail"]
+
+# [/DEF:test_datasets_api:Test]

backend/tests/test_resource_service.py

@@ -0,0 +1,47 @@
+# [DEF:backend.tests.test_resource_service:Module]
+# @TIER: STANDARD
+# @PURPOSE: Contract-driven tests for ResourceService
+# @RELATION: TESTS -> backend.src.services.resource_service
+
+import pytest
+from unittest.mock import MagicMock, patch
+from src.services.resource_service import ResourceService
+
+@pytest.mark.asyncio
+async def test_get_dashboards_with_status():
+    # [DEF:test_get_dashboards_with_status:Function]
+    # @TEST: ResourceService correctly enhances dashboard data
+    # @PRE: SupersetClient returns raw dashboards
+    # @POST: Returned dicts contain git_status and last_task
+    
+    with patch("src.services.resource_service.SupersetClient") as mock_client, \
+         patch("src.services.resource_service.GitService") as mock_git:
+        
+        service = ResourceService()
+        
+        # Mock Superset response
+        mock_client.return_value.get_dashboards_summary.return_value = [
+            {"id": 1, "title": "Test Dashboard", "slug": "test"}
+        ]
+        
+        # Mock Git status
+        mock_git.return_value.get_repo.return_value = None # No repo
+        
+        # Mock tasks
+        mock_task = MagicMock()
+        mock_task.id = "task-123"
+        mock_task.status = "RUNNING"
+        mock_task.params = {"resource_id": "dashboard-1"}
+        
+        env = MagicMock()
+        env.id = "prod"
+        
+        result = await service.get_dashboards_with_status(env, [mock_task])
+        
+        assert len(result) == 1
+        assert result[0]["id"] == 1
+        assert "git_status" in result[0]
+        assert result[0]["last_task"]["task_id"] == "task-123"
+        assert result[0]["last_task"]["status"] == "RUNNING"
+
+# [/DEF:backend.tests.test_resource_service:Module]

backend/tests/test_task_logger.py

@@ -6,13 +6,10 @@
 # @TIER: STANDARD
 
 # [SECTION: IMPORTS]
-import pytest
-from unittest.mock import Mock, MagicMock
-from datetime import datetime
+from unittest.mock import Mock
 
 from src.core.task_manager.task_logger import TaskLogger
 from src.core.task_manager.context import TaskContext
-from src.core.task_manager.models import LogEntry
 # [/SECTION]
 
 # [DEF:TestTaskLogger:Class]

docs/design/resource_centric_layout.md

@@ -0,0 +1,145 @@
+# Design Document: Resource-Centric UI & Unified Task Experience
+
+## 1. Core Philosophy
+
+The application moves from a **Task-Centric** model (where users navigate to "Migration Tool" or "Git Tool") to a **Resource-Centric** model. Users navigate to the object they want to manage (Dashboard, Dataset) and perform actions on it.
+
+**Goals:**
+1.  **Context preservation:** Users shouldn't lose their place in a list just to see a log.
+2.  **Discoverability:** All actions available for a resource are grouped together.
+3.  **Traceability:** Every action is explicitly linked to a Task ID with accessible logs.
+
+---
+
+## 2. Navigation Structure (Navbar)
+
+**Old Menu:**
+`[Home] [Migration] [Git Manager] [Mapper] [Settings] [Logout]`
+
+**New Menu:**
+`[Superset Manager]  [Dashboards]  [Datasets]  [Storage]  |  [Activity (0)] [Settings] [User]`
+
+*   **Dashboards**: Main hub for all dashboard operations (Migrate, Backup, Git).
+*   **Datasets**: Hub for dataset documentation and mapping.
+*   **Storage**: File management (Backups, Repositories).
+*   **Activity**: Global indicator of running tasks. Clicking it opens the Task Drawer.
+
+---
+
+## 3. Page Layouts
+
+### 3.1. Dashboard Hub (`/dashboards`)
+
+The central place for managing Superset Dashboards.
+
+**Wireframe:**
+```text
++-----------------------------------------------------------------------+
+|  Select Source Env: [ Development (v) ]     [ Refresh ]               |
++-----------------------------------------------------------------------+
+|  Search: [ Filter by title... ]                                       |
++-----------------------------------------------------------------------+
+|  Title           | Slug        | Git Status    | Last Task | Actions  |
+|------------------|-------------|---------------|-----------|----------|
+|  Sales Report    | sales-2023  | 🌿 main (OK)  | (v) Done  | [ ... ]  |
+|  HR Analytics    | hr-dash     | -             | ( ) Idle  | [ ... ]  |
+|  Logs Monitor    | logs-v2     | 🌿 dev (Diff) | (@) Run.. | [ ... ]  |
++-----------------------------------------------------------------------+
+```
+
+**Interaction Details:**
+1.  **Source Env Selector**: Loads dashboards via `superset_client.get_dashboards`.
+2.  **Status Column ("Last Task")**:
+    *   Shows the status of the *last known action* for this dashboard in the current session.
+    *   **States**: `Idle`, `Running` (Spinner), `Waiting Input` (Orange Key), `Success` (Green Check), `Error` (Red X).
+    *   **Click Action**: Clicking the icon/badge opens the **Task Drawer**.
+3.  **Actions Menu ([ ... ])**:
+    *   **Migrate**: Opens `DeploymentModal` (Simplified: just Target Env selector).
+    *   **Backup**: Immediately triggers `BackupPlugin`.
+    *   **Git Operations**:
+        *   *Init Repo* (if Git Status is empty).
+        *   *Commit/Push*, *History*, *Checkout* (if Git initialized).
+    *   **Validate**: Triggers LLM Analysis.
+
+### 3.2. Dataset Hub (`/datasets`)
+
+The central place for managing physical datasets and semantic layers.
+
+**Wireframe:**
+```text
++-----------------------------------------------------------------------+
+|  Select Source Env: [ Production (v) ]                                |
++-----------------------------------------------------------------------+
+|  Table Name      | Schema      | Mapped Fields | Last Task | Actions  |
+|------------------|-------------|---------------|-----------|----------|
+|  fact_orders     | public      | 15 / 20       | (v) Done  | [ ... ]  |
+|  dim_users       | auth        | 0 / 5         | ( ) Idle  | [ ... ]  |
++-----------------------------------------------------------------------+
+```
+
+**Actions Menu ([ ... ])**:
+*   **Map Columns**: Opens the Mapping Modal (replaces `MapperPage`).
+*   **Generate Docs**: Triggers `DocumentationPlugin`.
+
+---
+
+## 4. The Global Task Drawer
+
+**Concept:** A slide-out panel that overlays the right side of the screen. It persists in the DOM layout (Global Layout) but is hidden until triggered.
+
+**Trigger Points:**
+1.  Clicking a **Status Badge** in any Grid row (Dashboard or Dataset).
+2.  Clicking the **Activity** indicator in the Navbar.
+
+**Layout:**
+```text
++---------------------------------------------------------------+
+|  Task: Migration "Sales Report"                   [X] Close   |
+|  ID: 1234-5678-uuid                                           |
+|  Status: WAITING_INPUT (Paused)                               |
++---------------------------------------------------------------+
+|                                                               |
+|  [Log Stream Area]                                            |
+|  10:00:01 [INFO] Starting migration...                        |
+|  10:00:02 [INFO] Exporting dashboard...                       |
+|  10:00:05 [WARN] Target DB requires password!                 |
+|                                                               |
++---------------------------------------------------------------+
+|  INTERACTIVE AREA (Dynamic)                                   |
+|                                                               |
+|  Target Database: "Production DB"                             |
+|  Enter Password: [ ********** ]                               |
+|                                                               |
+|  [ Cancel ] [ Resume Task ]                                   |
++---------------------------------------------------------------+
+```
+
+**Behavior:**
+*   **Context Aware**: If I trigger a migration on "Sales Report", the Drawer automatically opens and subscribes to that task's ID.
+*   **Multi-Tasking**: I can close the drawer (click [X]) to let the task run in the background. The "Activity" badge in the navbar increments.
+*   **Input Handling**: Components like `PasswordPrompt` or `MissingMappingModal` are no longer center-screen modals blocking the whole UI. They are rendered *inside* the Interactive Area of the Drawer.
+
+---
+
+## 5. Technical Component Architecture
+
+### 5.1. Stores (`stores/tasks.js`)
+Needs a new reactive store structure to map Resources to Tasks.
+
+```javascript
+// Map resource UUIDs to their active/latest task UUIDs
+export const resourceTaskMap = writable({
+  "dashboard-uuid-1": { taskId: "task-uuid-A", status: "RUNNING" },
+  "dataset-uuid-2":   { taskId: "task-uuid-B", status: "SUCCESS" }
+});
+
+// The currently focused task in the Drawer
+export const activeDrawerTask = writable(null); // { taskId: "..." }
+export const isDrawerOpen = writable(false);
+```
+
+### 5.2. Components
+*   `DashboardHub.svelte`: Main page.
+*   `DatasetHub.svelte`: Main page.
+*   `GlobalTaskDrawer.svelte`: Lives in `+layout.svelte`. Connects to `activeDrawerTask`.
+*   `ActionMenu.svelte`: Reusable dropdown for grids.

frontend/src/lib/api.js

@@ -165,6 +165,16 @@ export const api = {
     getStorageSettings: () => fetchApi('/settings/storage'),
     updateStorageSettings: (storage) => requestApi('/settings/storage', 'PUT', storage),
     getEnvironmentsList: () => fetchApi('/environments'),
+    
+    // Dashboards
+    getDashboards: (envId) => fetchApi(`/dashboards?env_id=${envId}`),
+    
+    // Datasets
+    getDatasets: (envId) => fetchApi(`/datasets?env_id=${envId}`),
+    
+    // Settings
+    getConsolidatedSettings: () => fetchApi('/settings/consolidated'),
+    updateConsolidatedSettings: (settings) => requestApi('/settings/consolidated', 'PATCH', settings),
 };
 // [/DEF:api:Data]
 
@@ -187,3 +197,7 @@ export const updateEnvironmentSchedule = api.updateEnvironmentSchedule;
 export const getEnvironmentsList = api.getEnvironmentsList;
 export const getStorageSettings = api.getStorageSettings;
 export const updateStorageSettings = api.updateStorageSettings;
+export const getDashboards = api.getDashboards;
+export const getDatasets = api.getDatasets;
+export const getConsolidatedSettings = api.getConsolidatedSettings;
+export const updateConsolidatedSettings = api.updateConsolidatedSettings;

frontend/src/routes/+layout.svelte

@@ -1,30 +1,52 @@
+<!-- [DEF:layout:Module] -->
 <script>
     import '../app.css';
     import Navbar from '../components/Navbar.svelte';
     import Footer from '../components/Footer.svelte';
     import Toast from '../components/Toast.svelte';
     import ProtectedRoute from '../components/auth/ProtectedRoute.svelte';
+    import Breadcrumbs from '$lib/components/layout/Breadcrumbs.svelte';
+    import Sidebar from '$lib/components/layout/Sidebar.svelte';
+    import TopNavbar from '$lib/components/layout/TopNavbar.svelte';
+    import TaskDrawer from '$lib/components/layout/TaskDrawer.svelte';
     import { page } from '$app/stores';
+    import { sidebarStore } from '$lib/stores/sidebar.js';
 
     $: isLoginPage = $page.url.pathname === '/login';
+    $: isExpanded = $sidebarStore?.isExpanded || true;
 </script>
 
 <Toast />
 
-<main class="bg-gray-50 min-h-screen flex flex-col">
+<main class="bg-gray-50 min-h-screen">
     {#if isLoginPage}
-        <div class="p-4 flex-grow">
+        <div class="p-4">
             <slot />
         </div>
     {:else}
         <ProtectedRoute>
-            <Navbar />
+            <!-- Sidebar -->
+            <Sidebar />
 
-            <div class="p-4 flex-grow">
-                <slot />
+            <!-- Main content area with TopNavbar -->
+            <div class="flex flex-col {isExpanded ? 'ml-60' : 'ml-16'} transition-all duration-200">
+                <!-- Top Navigation Bar -->
+                <TopNavbar />
+                <!-- Breadcrumbs -->
+                <Breadcrumbs />
+
+                <!-- Page content -->
+                <div class="p-4 pt-20">
+                    <slot />
+                </div>
+
+                <!-- Footer -->
+                <Footer />
             </div>
 
-            <Footer />
+            <!-- Global Task Drawer -->
+            <TaskDrawer />
         </ProtectedRoute>
     {/if}
 </main>
+<!-- [/DEF:layout:Module] -->

frontend/src/routes/+page.svelte

@@ -1,99 +1,35 @@
+<!-- [DEF:HomePage:Page] -->
 <script>
-    import { plugins as pluginsStore, selectedPlugin, selectedTask } from '../lib/stores.js';
-    import TaskRunner from '../components/TaskRunner.svelte';
-    import DynamicForm from '../components/DynamicForm.svelte';
-    import { api } from '../lib/api.js';
-    import { get } from 'svelte/store';
-    import { goto } from '$app/navigation';
-    import { t } from '$lib/i18n';
-    import { Button, Card, PageHeader } from '$lib/ui';
+  /**
+   * @TIER: CRITICAL
+   * @PURPOSE: Redirect to Dashboard Hub as per UX requirements
+   * @LAYER: UI
+   * @INVARIANT: Always redirects to /dashboards
+   * 
+   * @UX_STATE: Loading -> Shows loading indicator
+   * @UX_FEEDBACK: Redirects to /dashboards
+   */
 
-    /** @type {import('./$types').PageData} */
-    export let data;
+  import { onMount } from 'svelte';
+  import { goto } from '$app/navigation';
 
-    // Sync store with loaded data if needed, or just use data.plugins directly
-    $: if (data.plugins) {
-        pluginsStore.set(data.plugins);
-    }
-
-    // [DEF:selectPlugin:Function]
-    /* @PURPOSE: Handles plugin selection and navigation.
-       @PRE: plugin object must be provided.
-       @POST: Navigates to migration or sets selectedPlugin store.
-    */
-    function selectPlugin(plugin) {
-        console.log(`[Dashboard][Action] Selecting plugin: ${plugin.id}`);
-        if (plugin.ui_route) {
-            goto(plugin.ui_route);
-        } else {
-            selectedPlugin.set(plugin);
-        }
-    }
-    // [/DEF:selectPlugin:Function]
-
-    // [DEF:handleFormSubmit:Function]
-    /* @PURPOSE: Handles task creation from dynamic form submission.
-       @PRE: event.detail must contain task parameters.
-       @POST: Task is created via API and selectedTask store is updated.
-    */
-    async function handleFormSubmit(event) {
-        console.log("[App.handleFormSubmit][Action] Handling form submission for task creation.");
-        const params = event.detail;
-        try {
-            const plugin = get(selectedPlugin);
-            const task = await api.createTask(plugin.id, params);
-            selectedTask.set(task);
-            selectedPlugin.set(null);
-            console.log(`[App.handleFormSubmit][Coherence:OK] Task created id=${task.id}`);
-        } catch (error) {
-            console.error(`[App.handleFormSubmit][Coherence:Failed] Task creation failed error=${error}`);
-        }
-    }
-    // [/DEF:handleFormSubmit:Function]
+  onMount(() => {
+    // Redirect to Dashboard Hub as per UX requirements
+    goto('/dashboards', { replaceState: true });
+  });
 </script>
 
-<div class="container mx-auto p-4">
-    {#if $selectedTask}
-        <TaskRunner />
-        <div class="mt-4">
-            <Button variant="primary" on:click={() => selectedTask.set(null)}>
-                {$t.common.cancel}
-            </Button>
-        </div>
-    {:else if $selectedPlugin}
-        <PageHeader title={$selectedPlugin.name} />
-        <Card>
-            <DynamicForm schema={$selectedPlugin.schema} on:submit={handleFormSubmit} />
-        </Card>
-        <div class="mt-4">
-            <Button variant="secondary" on:click={() => selectedPlugin.set(null)}>
-                {$t.common.cancel}
-            </Button>
-        </div>
-    {:else}
-        <PageHeader title={$t.nav.dashboard} />
-        
-        {#if data.error}
-            <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">
-                {data.error}
-            </div>
-        {/if}
+<style>
+  .loading {
+    @apply flex items-center justify-center min-h-screen;
+  }
+</style>
 
-        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
-            {#each data.plugins.filter(p => p.id !== 'superset-search') as plugin}
-                <div
-                    on:click={() => selectPlugin(plugin)}
-                    role="button"
-                    tabindex="0"
-                    on:keydown={(e) => e.key === 'Enter' && selectPlugin(plugin)}
-                    class="cursor-pointer transition-transform hover:scale-[1.02]"
-                >
-                    <Card title={plugin.name}>
-                        <p class="text-gray-600 mb-4">{plugin.description}</p>
-                        <span class="text-xs font-mono text-gray-400 bg-gray-50 px-2 py-1 rounded">v{plugin.version}</span>
-                    </Card>
-                </div>
-            {/each}
-        </div>
-    {/if}
+<div class="loading">
+  <svg class="animate-spin h-8 w-8 text-blue-600" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
+    <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+    <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+  </svg>
 </div>
+
+<!-- [/DEF:HomePage:Page] -->

frontend/src/routes/datasets/+page.svelte

@@ -0,0 +1,376 @@
+<!-- [DEF:DatasetHub:Page] -->
+<script>
+  /**
+   * @TIER: CRITICAL
+   * @PURPOSE: Dataset Hub - Dedicated hub for datasets with mapping progress
+   * @LAYER: UI
+   * @RELATION: BINDS_TO -> sidebarStore, taskDrawerStore
+   * @INVARIANT: Always shows environment selector and dataset grid
+   * 
+   * @UX_STATE: Loading -> Shows skeleton loader
+   * @UX_STATE: Loaded -> Shows dataset grid with mapping progress
+   * @UX_STATE: Error -> Shows error banner with retry button
+   * @UX_FEEDBACK: Clicking task status opens Task Drawer
+   * @UX_RECOVERY: Refresh button reloads dataset list
+   */
+
+  import { onMount } from 'svelte';
+  import { goto } from '$app/navigation';
+  import { t } from '$lib/i18n';
+  import { openDrawerForTask } from '$lib/stores/taskDrawer.js';
+  import { api } from '$lib/api.js';
+
+  // State
+  let selectedEnv = null;
+  let datasets = [];
+  let isLoading = true;
+  let error = null;
+
+  // Load environments and datasets on mount
+  onMount(async () => {
+    await loadEnvironments();
+    await loadDatasets();
+  });
+
+  // Load environments from API
+  async function loadEnvironments() {
+    try {
+      const response = await api.getEnvironments();
+      environments = response;
+      // Set first environment as default if no selection
+      if (environments.length > 0 && !selectedEnv) {
+        selectedEnv = environments[0].id;
+      }
+    } catch (err) {
+      console.error('[DatasetHub][Coherence:Failed] Failed to load environments:', err);
+      // Use fallback environments if API fails
+      environments = [
+        { id: 'development', name: 'Development' },
+        { id: 'staging', name: 'Staging' },
+        { id: 'production', name: 'Production' }
+      ];
+    }
+  }
+
+  // Load datasets from API
+  async function loadDatasets() {
+    if (!selectedEnv) return;
+    
+    isLoading = true;
+    error = null;
+    try {
+      const response = await api.getDatasets(selectedEnv);
+      datasets = response.datasets.map(d => ({
+        id: d.id,
+        table_name: d.table_name,
+        schema: d.schema,
+        database: d.database,
+        mappedFields: d.mapped_fields ? {
+          total: d.mapped_fields.total,
+          mapped: d.mapped_fields.mapped
+        } : null,
+        lastTask: d.last_task ? {
+          status: d.last_task.status?.toLowerCase() || null,
+          id: d.last_task.task_id
+        } : null,
+        actions: ['map_columns'] // All datasets have map columns option
+      }));
+    } catch (err) {
+      error = err.message || 'Failed to load datasets';
+      console.error('[DatasetHub][Coherence:Failed]', err);
+    } finally {
+      isLoading = false;
+    }
+  }
+
+  // Handle environment change
+  function handleEnvChange(event) {
+    selectedEnv = event.target.value;
+    loadDatasets();
+  }
+
+  // Handle action click
+  function handleAction(dataset, action) {
+    console.log(`[DatasetHub][Action] ${action} on dataset ${dataset.table_name}`);
+    if (action === 'map_columns') {
+      // Navigate to mapping interface
+      goto(`/mapper?dataset_id=${dataset.id}`);
+    }
+  }
+
+  // Handle task status click - open Task Drawer
+  function handleTaskStatusClick(dataset) {
+    if (dataset.lastTask?.id) {
+      console.log(`[DatasetHub][Action] Open task drawer for task ${dataset.lastTask.id}`);
+      openDrawerForTask(dataset.lastTask.id);
+    }
+  }
+
+  // Get task status icon
+  function getTaskStatusIcon(status) {
+    if (!status) return '';
+    switch (status.toLowerCase()) {
+      case 'running':
+        return '<svg class="animate-spin" width="16" height="16" viewBox="0 0 24 24"><path fill="currentColor" d="M12 2a10 10 0 1 0 10 10A10 10 0 0 0 12 2zm0 18a8 8 0 1 1 8-8 8 8 0 0 1-8 8z"/></svg>';
+      case 'success':
+        return '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z"/></svg>';
+      case 'error':
+        return '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z"/></svg>';
+      case 'waiting_input':
+        return '<svg width="16" height="16" viewBox="0 0 24 24" fill="currentColor"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z"/></svg>';
+      default:
+        return '';
+    }
+  }
+
+  // Get mapping progress bar class
+  function getMappingProgressClass(mapped, total) {
+    if (!mapped || !total) return 'bg-gray-200';
+    const percentage = (mapped / total) * 100;
+    if (percentage === 100) {
+      return 'bg-green-500';
+    } else if (percentage >= 50) {
+      return 'bg-yellow-400';
+    } else {
+      return 'bg-blue-400';
+    }
+  }
+</script>
+
+<style>
+  .container {
+    @apply max-w-7xl mx-auto px-4 py-6;
+  }
+
+  .header {
+    @apply flex items-center justify-between mb-6;
+  }
+
+  .title {
+    @apply text-2xl font-bold text-gray-900;
+  }
+
+  .env-selector {
+    @apply flex items-center space-x-4;
+  }
+
+  .env-dropdown {
+    @apply px-4 py-2 border border-gray-300 rounded-lg bg-white focus:outline-none focus:ring-2 focus:ring-blue-500;
+  }
+
+  .refresh-btn {
+    @apply px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition-colors;
+  }
+
+  .error-banner {
+    @apply bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4 flex items-center justify-between;
+  }
+
+  .retry-btn {
+    @apply px-4 py-2 bg-red-600 text-white rounded hover:bg-red-700 transition-colors;
+  }
+
+  .dataset-grid {
+    @apply bg-white border border-gray-200 rounded-lg overflow-hidden;
+  }
+
+  .grid-header {
+    @apply grid grid-cols-12 gap-4 px-6 py-3 bg-gray-50 border-b border-gray-200 font-semibold text-sm text-gray-700;
+  }
+
+  .grid-row {
+    @apply grid grid-cols-12 gap-4 px-6 py-4 border-b border-gray-200 hover:bg-gray-50 transition-colors;
+  }
+
+  .grid-row:last-child {
+    @apply border-b-0;
+  }
+
+  .col-table-name {
+    @apply col-span-3 font-medium text-gray-900;
+  }
+
+  .col-schema {
+    @apply col-span-2;
+  }
+
+  .col-mapping {
+    @apply col-span-2;
+  }
+
+  .col-task {
+    @apply col-span-3;
+  }
+
+  .col-actions {
+    @apply col-span-2;
+  }
+
+  .mapping-progress {
+    @apply w-24 h-2 rounded-full overflow-hidden;
+  }
+
+  .mapping-bar {
+    @apply h-full transition-all duration-300;
+  }
+
+  .task-status {
+    @apply inline-flex items-center space-x-2 cursor-pointer hover:text-blue-600 transition-colors;
+  }
+
+  .action-btn {
+    @apply px-3 py-1 text-sm border border-gray-300 rounded hover:bg-gray-100 transition-colors;
+  }
+
+  .action-btn.primary {
+    @apply bg-blue-600 text-white border-blue-600 hover:bg-blue-700;
+  }
+
+  .empty-state {
+    @apply py-12 text-center text-gray-500;
+  }
+
+  .skeleton {
+    @apply animate-pulse bg-gray-200 rounded;
+  }
+</style>
+
+<div class="container">
+  <!-- Header -->
+  <div class="header">
+    <h1 class="title">{$t.nav?.datasets || 'Datasets'}</h1>
+    <div class="env-selector">
+      <select class="env-dropdown" bind:value={selectedEnv} on:change={handleEnvChange}>
+        {#each environments as env}
+          <option value={env.id}>{env.name}</option>
+        {/each}
+      </select>
+      <button class="refresh-btn" on:click={loadDatasets}>
+        {$t.common?.refresh || 'Refresh'}
+      </button>
+    </div>
+  </div>
+
+  <!-- Error Banner -->
+  {#if error}
+    <div class="error-banner">
+      <span>{error}</span>
+      <button class="retry-btn" on:click={loadDatasets}>
+        {$t.common?.retry || 'Retry'}
+      </button>
+    </div>
+  {/if}
+
+  <!-- Loading State -->
+  {#if isLoading}
+    <div class="dataset-grid">
+      <div class="grid-header">
+        <div class="col-table-name skeleton h-4"></div>
+        <div class="col-schema skeleton h-4"></div>
+        <div class="col-mapping skeleton h-4"></div>
+        <div class="col-task skeleton h-4"></div>
+        <div class="col-actions skeleton h-4"></div>
+      </div>
+      {#each Array(5) as _}
+        <div class="grid-row">
+          <div class="col-table-name skeleton h-4"></div>
+          <div class="col-schema skeleton h-4"></div>
+          <div class="col-mapping skeleton h-4"></div>
+          <div class="col-task skeleton h-4"></div>
+          <div class="col-actions skeleton h-4"></div>
+        </div>
+      {/each}
+    </div>
+  {:else if datasets.length === 0}
+    <!-- Empty State -->
+    <div class="empty-state">
+      <svg class="w-16 h-16 mx-auto mb-4 text-gray-400" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <path d="M3 3h18v18H3V3zm16 16V5H5v14h14z"/>
+      </svg>
+      <p>{$t.datasets?.empty || 'No datasets found'}</p>
+    </div>
+  {:else}
+    <!-- Dataset Grid -->
+    <div class="dataset-grid">
+      <!-- Grid Header -->
+      <div class="grid-header">
+        <div class="col-table-name">{$t.datasets?.table_name || 'Table Name'}</div>
+        <div class="col-schema">{$t.datasets?.schema || 'Schema'}</div>
+        <div class="col-mapping">{$t.datasets?.mapped_fields || 'Mapped Fields'}</div>
+        <div class="col-task">{$t.datasets?.last_task || 'Last Task'}</div>
+        <div class="col-actions">{$t.datasets?.actions || 'Actions'}</div>
+      </div>
+
+      <!-- Grid Rows -->
+      {#each datasets as dataset}
+        <div class="grid-row">
+          <!-- Table Name -->
+          <div class="col-table-name">
+            {dataset.table_name}
+          </div>
+
+          <!-- Schema -->
+          <div class="col-schema">
+            {dataset.schema}
+          </div>
+
+          <!-- Mapping Progress -->
+          <div class="col-mapping">
+            {#if dataset.mappedFields}
+              <div class="mapping-progress" title="{$t.datasets?.mapped_of_total || 'Mapped of total'}: {dataset.mappedFields.mapped} / {dataset.mappedFields.total}">
+                <div class="mapping-bar {getMappingProgressClass(dataset.mappedFields.mapped, dataset.mappedFields.total)}" style="width: {dataset.mappedFields.mapped / dataset.mappedFields.total * 100}%"></div>
+              </div>
+            {:else}
+              <span class="text-gray-400">-</span>
+            {/if}
+          </div>
+
+          <!-- Last Task -->
+          <div class="col-task">
+            {#if dataset.lastTask}
+              <div 
+                class="task-status"
+                on:click={() => handleTaskStatusClick(dataset)}
+                role="button"
+                tabindex="0"
+                aria-label={$t.datasets?.view_task || 'View task'}
+              >
+                {@html getTaskStatusIcon(dataset.lastTask.status)}
+                <span>
+                  {#if dataset.lastTask.status.toLowerCase() === 'running'}
+                    {$t.datasets?.task_running || 'Running...'}
+                  {:else if dataset.lastTask.status.toLowerCase() === 'success'}
+                    {$t.datasets?.task_done || 'Done'}
+                  {:else if dataset.lastTask.status.toLowerCase() === 'error'}
+                    {$t.datasets?.task_failed || 'Failed'}
+                  {:else if dataset.lastTask.status.toLowerCase() === 'waiting_input'}
+                    {$t.datasets?.task_waiting || 'Waiting'}
+                  {/if}
+                </span>
+              </div>
+            {:else}
+              <span class="text-gray-400">-</span>
+            {/if}
+          </div>
+
+          <!-- Actions -->
+          <div class="col-actions">
+            <div class="flex space-x-2">
+              {#if dataset.actions.includes('map_columns')}
+                <button 
+                  class="action-btn primary"
+                  on:click={() => handleAction(dataset, 'map_columns')}
+                  aria-label={$t.datasets?.action_map_columns || 'Map Columns'}
+                >
+                  {$t.datasets?.action_map_columns || 'Map Columns'}
+                </button>
+              {/if}
+            </div>
+          </div>
+        </div>
+      {/each}
+    </div>
+  {/if}
+</div>
+
+<!-- [/DEF:DatasetHub:Page] -->

frontend/src/routes/settings/+page.svelte

@@ -1,295 +1,270 @@
+<!-- [DEF:SettingsPage:Page] -->
 <script>
-    import { onMount } from 'svelte';
-    import { updateGlobalSettings, addEnvironment, updateEnvironment, deleteEnvironment, testEnvironmentConnection, updateStorageSettings } from '../../lib/api';
-    import { addToast } from '../../lib/toasts';
-    import { t } from '$lib/i18n';
-    import { Button, Input, Card, PageHeader } from '$lib/ui';
+  /**
+   * @TIER: CRITICAL
+   * @PURPOSE: Consolidated Settings Page - All settings in one place with tabbed navigation
+   * @LAYER: UI
+   * @RELATION: BINDS_TO -> sidebarStore
+   * @INVARIANT: Always shows tabbed interface with all settings categories
+   * 
+   * @UX_STATE: Loading -> Shows skeleton loader
+   * @UX_STATE: Loaded -> Shows tabbed settings interface
+   * @UX_STATE: Error -> Shows error banner with retry button
+   * @UX_FEEDBACK: Toast notifications on save success/failure
+   * @UX_RECOVERY: Refresh button reloads settings data
+   */
 
-    /** @type {import('./$types').PageData} */
-    export let data;
+  import { onMount } from 'svelte';
+  import { t } from '$lib/i18n';
+  import { api } from '$lib/api.js';
+  import { addToast } from '$lib/toasts';
 
-    let settings = data.settings || {
-        environments: [],
-        settings: {
-            storage: {
-                root_path: '',
-                backup_structure_pattern: '',
-                repo_structure_pattern: '',
-                filename_pattern: ''
-            }
-        }
-    };
+  // State
+  let activeTab = 'environments';
+  let settings = null;
+  let isLoading = true;
+  let error = null;
 
-    $: if (data.settings) {
-        settings = { ...data.settings };
-        if (settings.settings && !settings.settings.storage) {
-            settings.settings.storage = {
-                root_path: '',
-                backup_structure_pattern: '',
-                repo_structure_pattern: '',
-                filename_pattern: ''
-            };
-        }
+  // Load settings on mount
+  onMount(async () => {
+    await loadSettings();
+  });
+
+  // Load consolidated settings from API
+  async function loadSettings() {
+    isLoading = true;
+    error = null;
+    try {
+      const response = await api.getConsolidatedSettings();
+      settings = response;
+    } catch (err) {
+      error = err.message || 'Failed to load settings';
+      console.error('[SettingsPage][Coherence:Failed]', err);
+    } finally {
+      isLoading = false;
     }
+  }
 
-    let newEnv = {
-        id: '',
-        name: '',
-        url: '',
-        username: '',
-        password: '',
-        is_default: false
-    };
+  // Handle tab change
+  function handleTabChange(tab) {
+    activeTab = tab;
+  }
 
-    let editingEnvId = null;
+  // Get tab class
+  function getTabClass(tab) {
+    return activeTab === tab
+      ? 'text-blue-600 border-b-2 border-blue-600'
+      : 'text-gray-600 hover:text-gray-800 border-transparent hover:border-gray-300';
+  }
 
-    // [DEF:handleSaveGlobal:Function]
-    /* @PURPOSE: Saves global application settings.
-       @PRE: settings.settings must contain valid configuration.
-       @POST: Global settings are updated via API.
-    */
-    async function handleSaveGlobal() {
-        try {
-            console.log("[Settings.handleSaveGlobal][Action] Saving global settings.");
-            await updateGlobalSettings(settings.settings);
-            addToast('Global settings saved', 'success');
-            console.log("[Settings.handleSaveGlobal][Coherence:OK] Global settings saved.");
-        } catch (error) {
-            console.error("[Settings.handleSaveGlobal][Coherence:Failed] Failed to save global settings:", error);
-            addToast('Failed to save global settings', 'error');
-        }
+  // Handle save
+  async function handleSave() {
+    console.log('[SettingsPage][Action] Saving settings');
+    try {
+      await api.updateConsolidatedSettings(settings);
+      addToast($t.settings?.save_success || 'Settings saved', 'success');
+    } catch (err) {
+      console.error('[SettingsPage][Coherence:Failed]', err);
+      addToast($t.settings?.save_failed || 'Failed to save settings', 'error');
     }
-    // [/DEF:handleSaveGlobal:Function]
-
-    // [DEF:handleSaveStorage:Function]
-    /* @PURPOSE: Saves storage-specific settings.
-       @PRE: settings.settings.storage must contain valid configuration.
-       @POST: Storage settings are updated via API.
-    */
-    async function handleSaveStorage() {
-        try {
-            console.log("[Settings.handleSaveStorage][Action] Saving storage settings.");
-            await updateStorageSettings(settings.settings.storage);
-            addToast('Storage settings saved', 'success');
-            console.log("[Settings.handleSaveStorage][Coherence:OK] Storage settings saved.");
-        } catch (error) {
-            console.error("[Settings.handleSaveStorage][Coherence:Failed] Failed to save storage settings:", error);
-            addToast(error.message || 'Failed to save storage settings', 'error');
-        }
-    }
-    // [/DEF:handleSaveStorage:Function]
-
-    // [DEF:handleAddOrUpdateEnv:Function]
-    /* @PURPOSE: Adds a new environment or updates an existing one.
-       @PRE: newEnv must contain valid environment details.
-       @POST: Environment is saved and page is reloaded to reflect changes.
-    */
-    async function handleAddOrUpdateEnv() {
-        try {
-            console.log(`[Settings.handleAddOrUpdateEnv][Action] ${editingEnvId ? 'Updating' : 'Adding'} environment.`);
-            if (editingEnvId) {
-                await updateEnvironment(editingEnvId, newEnv);
-                addToast('Environment updated', 'success');
-            } else {
-                await addEnvironment(newEnv);
-                addToast('Environment added', 'success');
-            }
-            resetEnvForm();
-            // In a real app, we might want to invalidate the load function here
-            // For now, we'll just manually update the local state or re-fetch
-            // But since we are using SvelteKit, we should ideally use invalidateAll()
-            location.reload(); // Simple way to refresh data for now
-            console.log("[Settings.handleAddOrUpdateEnv][Coherence:OK] Environment saved.");
-        } catch (error) {
-            console.error("[Settings.handleAddOrUpdateEnv][Coherence:Failed] Failed to save environment:", error);
-            addToast('Failed to save environment', 'error');
-        }
-    }
-    // [/DEF:handleAddOrUpdateEnv:Function]
-
-    // [DEF:handleDeleteEnv:Function]
-    /* @PURPOSE: Deletes a Superset environment.
-       @PRE: id must be a valid environment ID.
-       @POST: Environment is removed and page is reloaded.
-    */
-    async function handleDeleteEnv(id) {
-        if (confirm('Are you sure you want to delete this environment?')) {
-            try {
-                console.log(`[Settings.handleDeleteEnv][Action] Deleting environment: ${id}`);
-                await deleteEnvironment(id);
-                addToast('Environment deleted', 'success');
-                location.reload();
-                console.log("[Settings.handleDeleteEnv][Coherence:OK] Environment deleted.");
-            } catch (error) {
-                console.error("[Settings.handleDeleteEnv][Coherence:Failed] Failed to delete environment:", error);
-                addToast('Failed to delete environment', 'error');
-            }
-        }
-    }
-    // [/DEF:handleDeleteEnv:Function]
-
-    // [DEF:handleTestEnv:Function]
-    /* @PURPOSE: Tests the connection to a Superset environment.
-       @PRE: id must be a valid environment ID.
-       @POST: Displays success or error toast based on connection result.
-    */
-    async function handleTestEnv(id) {
-        try {
-            console.log(`[Settings.handleTestEnv][Action] Testing environment: ${id}`);
-            const result = await testEnvironmentConnection(id);
-            if (result.status === 'success') {
-                addToast('Connection successful', 'success');
-                console.log("[Settings.handleTestEnv][Coherence:OK] Connection successful.");
-            } else {
-                addToast(`Connection failed: ${result.message}`, 'error');
-                console.log("[Settings.handleTestEnv][Coherence:Failed] Connection failed.");
-            }
-        } catch (error) {
-            console.error("[Settings.handleTestEnv][Coherence:Failed] Error testing connection:", error);
-            addToast('Failed to test connection', 'error');
-        }
-    }
-    // [/DEF:handleTestEnv:Function]
-
-    // [DEF:editEnv:Function]
-    /* @PURPOSE: Populates the environment form for editing.
-       @PRE: env object must be provided.
-       @POST: newEnv and editingEnvId are updated.
-    */
-    function editEnv(env) {
-        newEnv = { ...env };
-        editingEnvId = env.id;
-    }
-    // [/DEF:editEnv:Function]
-
-    // [DEF:resetEnvForm:Function]
-    /* @PURPOSE: Resets the environment creation/edit form to default state.
-       @PRE: None.
-       @POST: newEnv is cleared and editingEnvId is set to null.
-    */
-    function resetEnvForm() {
-        newEnv = {
-            id: '',
-            name: '',
-            url: '',
-            username: '',
-            password: '',
-            is_default: false
-        };
-        editingEnvId = null;
-    }
-    // [/DEF:resetEnvForm:Function]
+  }
 </script>
 
-<div class="container mx-auto p-4">
-    <PageHeader title={$t.settings.title} />
+<style>
+  .container {
+    @apply max-w-7xl mx-auto px-4 py-6;
+  }
 
-    {#if data.error}
-        <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">
-            {data.error}
-        </div>
-    {/if}
+  .header {
+    @apply flex items-center justify-between mb-6;
+  }
 
+  .title {
+    @apply text-2xl font-bold text-gray-900;
+  }
 
-    <div class="mb-8">
-        <Card title={$t.settings?.storage_title || "File Storage Configuration"}>
-            <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
-                <div class="md:col-span-2">
-                    <Input
-                        label={$t.settings?.storage_root || "Storage Root Path"}
-                        bind:value={settings.settings.storage.root_path}
-                    />
-                </div>
-                <Input
-                    label={$t.settings?.storage_backup_pattern || "Backup Directory Pattern"}
-                    bind:value={settings.settings.storage.backup_structure_pattern}
-                />
-                <Input
-                    label={$t.settings?.storage_repo_pattern || "Repository Directory Pattern"}
-                    bind:value={settings.settings.storage.repo_structure_pattern}
-                />
-                <Input
-                    label={$t.settings?.storage_filename_pattern || "Filename Pattern"}
-                    bind:value={settings.settings.storage.filename_pattern}
-                />
-                <div class="bg-gray-50 p-4 rounded border border-gray-200">
-                    <span class="block text-xs font-semibold text-gray-500 uppercase mb-2">{$t.settings?.storage_preview || "Path Preview"}</span>
-                    <code class="text-sm text-indigo-600">
-                        {settings.settings.storage.root_path}/backups/sample_backup.zip
-                    </code>
-                </div>
-            </div>
-            <div class="mt-6">
-                <Button on:click={handleSaveStorage}>
-                    {$t.common.save}
-                </Button>
-            </div>
-        </Card>
+  .refresh-btn {
+    @apply px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition-colors;
+  }
+
+  .error-banner {
+    @apply bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4 flex items-center justify-between;
+  }
+
+  .retry-btn {
+    @apply px-4 py-2 bg-red-600 text-white rounded hover:bg-red-700 transition-colors;
+  }
+
+  .tabs {
+    @apply border-b border-gray-200 mb-6;
+  }
+
+  .tab-btn {
+    @apply px-4 py-2 text-sm font-medium transition-colors focus:outline-none;
+  }
+
+  .tab-content {
+    @apply bg-white rounded-lg p-6 border border-gray-200;
+  }
+
+  .skeleton {
+    @apply animate-pulse bg-gray-200 rounded;
+  }
+</style>
+
+<div class="container">
+  <!-- Header -->
+  <div class="header">
+    <h1 class="title">{$t.settings?.title || 'Settings'}</h1>
+    <button class="refresh-btn" on:click={loadSettings}>
+      {$t.common?.refresh || 'Refresh'}
+    </button>
+  </div>
+
+  <!-- Error Banner -->
+  {#if error}
+    <div class="error-banner">
+      <span>{error}</span>
+      <button class="retry-btn" on:click={loadSettings}>
+        {$t.common?.retry || 'Retry'}
+      </button>
+    </div>
+  {/if}
+
+  <!-- Loading State -->
+  {#if isLoading}
+    <div class="tab-content">
+      <div class="skeleton h-8"></div>
+      <div class="skeleton h-8"></div>
+      <div class="skeleton h-8"></div>
+      <div class="skeleton h-8"></div>
+      <div class="skeleton h-8"></div>
+    </div>
+  {:else if settings}
+    <!-- Tabs -->
+    <div class="tabs">
+      <button 
+        class="tab-btn {getTabClass('environments')}"
+        on:click={() => handleTabChange('environments')}
+      >
+        {$t.settings?.environments || 'Environments'}
+      </button>
+      <button 
+        class="tab-btn {getTabClass('connections')}"
+        on:click={() => handleTabChange('connections')}
+      >
+        {$t.settings?.connections || 'Connections'}
+      </button>
+      <button 
+        class="tab-btn {getTabClass('llm')}"
+        on:click={() => handleTabChange('llm')}
+      >
+        {$t.settings?.llm || 'LLM'}
+      </button>
+      <button 
+        class="tab-btn {getTabClass('logging')}"
+        on:click={() => handleTabChange('logging')}
+      >
+        {$t.settings?.logging || 'Logging'}
+      </button>
+      <button 
+        class="tab-btn {getTabClass('storage')}"
+        on:click={() => handleTabChange('storage')}
+      >
+        {$t.settings?.storage || 'Storage'}
+      </button>
     </div>
 
-    <section class="mb-8">
-        <Card title={$t.settings?.env_title || "Superset Environments"}>
-
-    {#if settings.environments.length === 0}
-        <div class="mb-4 p-4 bg-yellow-100 border-l-4 border-yellow-500 text-yellow-700">
-            <p class="font-bold">Warning</p>
-            <p>{$t.settings?.env_warning || "No Superset environments configured."}</p>
-        </div>
-    {/if}
-        
-        <div class="mb-6 overflow-x-auto">
-            <table class="min-w-full divide-y divide-gray-200">
+    <!-- Tab Content -->
+    <div class="tab-content">
+      {#if activeTab === 'environments'}
+        <!-- Environments Tab -->
+        <div class="text-lg font-medium mb-4">
+          <h2 class="text-xl font-bold mb-4">{$t.settings?.environments || 'Superset Environments'}</h2>
+          <p class="text-gray-600 mb-6">
+            {$t.settings?.env_description || 'Configure Superset environments for dashboards and datasets.'}
+          </p>
+          <div class="flex justify-end mb-6">
+            <button class="bg-blue-600 text-white px-4 py-2 rounded-lg hover:bg-blue-700">
+              {$t.settings?.env_add || 'Add Environment'}
+            </button>
+          </div>
+          {#if settings.environments && settings.environments.length > 0}
+            <div class="mt-6">
+              <table class="min-w-full divide-y divide-gray-200">
                 <thead class="bg-gray-50">
-                    <tr>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">{$t.connections?.name || "Name"}</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">URL</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">{$t.connections?.user || "Username"}</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Default</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">{$t.git?.actions || "Actions"}</th>
-                    </tr>
+                  <tr>
+                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">{$t.connections?.name || "Name"}</th>
+                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">URL</th>
+                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">{$t.connections?.user || "Username"}</th>
+                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase tracking-wider">Default</th>
+                    <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 uppercase tracking-wider">{$t.settings?.env_actions || "Actions"}</th>
+                  </tr>
                 </thead>
                 <tbody class="bg-white divide-y divide-gray-200">
-                    {#each settings.environments as env}
-                        <tr>
-                            <td class="px-6 py-4 whitespace-nowrap">{env.name}</td>
-                            <td class="px-6 py-4 whitespace-nowrap">{env.url}</td>
-                            <td class="px-6 py-4 whitespace-nowrap">{env.username}</td>
-                            <td class="px-6 py-4 whitespace-nowrap">{env.is_default ? 'Yes' : 'No'}</td>
-                            <td class="px-6 py-4 whitespace-nowrap">
-                                <button on:click={() => handleTestEnv(env.id)} class="text-green-600 hover:text-green-900 mr-4">{$t.settings?.env_test || "Test"}</button>
-                                <button on:click={() => editEnv(env)} class="text-indigo-600 hover:text-indigo-900 mr-4">{$t.common.edit}</button>
-                                <button on:click={() => handleDeleteEnv(env.id)} class="text-red-600 hover:text-red-900">{$t.settings?.env_delete || "Delete"}</button>
-                            </td>
-                        </tr>
-                    {/each}
+                  {#each settings.environments as env}
+                    <tr>
+                      <td class="px-6 py-4 whitespace-nowrap">{env.name}</td>
+                      <td class="px-6 py-4 whitespace-nowrap">{env.url}</td>
+                      <td class="px-6 py-4 whitespace-nowrap">{env.username}</td>
+                      <td class="px-6 py-4 whitespace-nowrap">{env.is_default ? 'Yes' : 'No'}</td>
+                      <td class="px-6 py-4 whitespace-nowrap">
+                        <button class="text-green-600 hover:text-green-900 mr-4" on:click={() => handleTestEnv(env.id)}>
+                          {$t.settings?.env_test || "Test"}
+                        </button>
+                        <button class="text-indigo-600 hover:text-indigo-900 mr-4" on:click={() => editEnv(env)}>
+                          {$t.common.edit}
+                        </button>
+                        <button class="text-red-600 hover:text-red-900" on:click={() => handleDeleteEnv(env.id)}>
+                          {$t.settings?.env_delete || "Delete"}
+                        </button>
+                      </td>
+                    </tr>
+                  {/each}
                 </tbody>
-            </table>
-        </div>
-
-        <div class="mt-8 bg-gray-50 p-6 rounded-lg border border-gray-100">
-            <h3 class="text-lg font-medium mb-6">{editingEnvId ? ($t.settings?.env_edit || "Edit Environment") : ($t.settings?.env_add || "Add Environment")}</h3>
-            <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
-                <Input label="ID" bind:value={newEnv.id} disabled={!!editingEnvId} />
-                <Input label={$t.connections?.name || "Name"} bind:value={newEnv.name} />
-                <Input label="URL" bind:value={newEnv.url} />
-                <Input label={$t.connections?.user || "Username"} bind:value={newEnv.username} />
-                <Input label={$t.connections?.pass || "Password"} type="password" bind:value={newEnv.password} />
-                <div class="flex items-center gap-2 h-10 mt-auto">
-                    <input type="checkbox" id="env_default" bind:checked={newEnv.is_default} class="h-4 w-4 text-blue-600 border-gray-300 rounded focus:ring-blue-500" />
-                    <label for="env_default" class="text-sm font-medium text-gray-700">{$t.settings?.env_default || "Default Environment"}</label>
-                </div>
-            </div>
-            <div class="mt-8 flex gap-3">
-                <Button on:click={handleAddOrUpdateEnv}>
-                    {editingEnvId ? $t.common.save : ($t.settings?.env_add || "Add Environment")}
-                </Button>
-                {#if editingEnvId}
-                    <Button variant="secondary" on:click={resetEnvForm}>
-                        {$t.common.cancel}
-                    </Button>
-                {/if}
+              </table>
             </div>
+          {/if}
         </div>
-        </Card>
-    </section>
+      {:else if activeTab === 'connections'}
+        <!-- Connections Tab -->
+        <div class="text-lg font-medium mb-4">
+          <h2 class="text-xl font-bold mb-4">{$t.settings?.connections || 'Database Connections'}</h2>
+          <p class="text-gray-600 mb-6">
+            {$t.settings?.connections_description || 'Configure database connections for data mapping.'}
+          </p>
+        </div>
+      {:else if activeTab === 'llm'}
+        <!-- LLM Tab -->
+        <div class="text-lg font-medium mb-4">
+          <h2 class="text-xl font-bold mb-4">{$t.settings?.llm || 'LLM Providers'}</h2>
+          <p class="text-gray-600 mb-6">
+            {$t.settings?.llm_description || 'Configure LLM providers for dataset documentation.'}
+          </p>
+          <div class="flex justify-end mb-6">
+            <button class="bg-blue-600 text-white px-4 py-2 rounded-lg hover:bg-blue-700">
+              {$t.llm?.add_provider || 'Add Provider'}
+            </button>
+          </div>
+        </div>
+      {:else if activeTab === 'logging'}
+        <!-- Logging Tab -->
+        <div class="text-lg font-medium mb-4">
+          <h2 class="text-xl font-bold mb-4">{$t.settings?.logging || 'Logging Configuration'}</h2>
+          <p class="text-gray-600 mb-6">
+            {$t.settings?.logging_description || 'Configure logging and task log levels.'}
+          </p>
+        </div>
+      {:else if activeTab === 'storage'}
+        <!-- Storage Tab -->
+        <div class="text-lg font-medium mb-4">
+          <h2 class="text-xl font-bold mb-4">{$t.settings?.storage || 'File Storage Configuration'}</h2>
+          <p class="text-gray-600 mb-6">
+            {$t.settings?.storage_description || 'Configure file storage paths and patterns.'}
+          </p>
+        </div>
+      {/if}
+    </div>
 </div>
+
+<!-- [/DEF:SettingsPage:Page] -->

specs/019-superset-ux-redesign/checklists/requirements.md

@@ -0,0 +1,46 @@
+# Specification Quality Checklist: Superset-Style UX Redesign
+
+**Purpose**: Validate specification completeness and quality before proceeding to planning
+**Created**: 2026-02-08
+**Feature**: [specs/019-superset-ux-redesign/spec.md](../spec.md)
+
+## Content Quality
+
+- [x] No implementation details (languages, frameworks, APIs)
+- [x] Focused on user value and business needs
+- [x] Written for non-technical stakeholders
+- [x] All mandatory sections completed
+
+## UX Consistency
+
+- [x] Functional requirements fully support the 'Happy Path' in ux_reference.md
+- [x] Error handling requirements match the 'Error Experience' in ux_reference.md
+- [x] No requirements contradict the defined User Persona or Context
+- [x] Top navbar design is consistent with mockups in ux_reference.md
+- [x] Settings consolidation aligns with sidebar navigation structure
+
+## Requirement Completeness
+
+- [x] No [NEEDS CLARIFICATION] markers remain
+- [x] Requirements are testable and unambiguous
+- [x] Success criteria are measurable
+- [x] Success criteria are technology-agnostic (no implementation details)
+- [x] All acceptance scenarios are defined
+- [x] Edge cases are identified
+- [x] Scope is clearly bounded
+- [x] Dependencies and assumptions identified
+
+## Feature Readiness
+
+- [x] All functional requirements have clear acceptance criteria
+- [x] User scenarios cover primary flows (6 user stories defined)
+- [x] Feature meets measurable outcomes defined in Success Criteria
+- [x] No implementation details leak into specification
+
+## Notes
+
+- The specification has been updated to align with the "Resource-Centric" philosophy described in `docs/design/resource_centric_layout.md`.
+- All "Tool-Centric" references (Migration Tool, Git Tool) have been replaced with "Resource Hubs" (Dashboard Hub, Dataset Hub).
+- The Task Drawer is now the central mechanism for all task interactions.
+- **New additions**: Top Navigation Bar design (User Story 5) and Consolidated Settings experience (User Story 6).
+- Functional requirements have been reorganized into logical groups: Navigation & Layout, Resource Hubs, Task Management, Settings & Configuration.

specs/019-superset-ux-redesign/contracts/api.md

@@ -0,0 +1,242 @@
+# API Contracts: Superset-Style UX Redesign
+
+**Feature**: 019-superset-ux-redesign
+**Date**: 2026-02-09
+
+## Overview
+
+This document defines the API contracts for new endpoints required by the Resource-Centric UI. All endpoints follow existing patterns in the codebase.
+
+## New Endpoints
+
+### 1. Dashboard Hub API
+
+#### GET /api/dashboards
+
+**Purpose**: Fetch list of dashboards from a specific environment for the Dashboard Hub grid.
+
+**Query Parameters**:
+| Parameter | Type | Required | Description |
+|-----------|------|----------|-------------|
+| env_id | string | Yes | Environment ID to fetch dashboards from |
+| search | string | No | Filter by title/slug |
+
+**Response**:
+```json
+{
+  "dashboards": [
+    {
+      "id": "uuid-string",
+      "title": "Sales Report",
+      "slug": "sales-2023",
+      "url": "/superset/dashboard/sales-2023",
+      "git_status": {
+        "branch": "main",
+        "sync_status": "OK" | "DIFF" | null
+      },
+      "last_task": {
+        "task_id": "task-uuid",
+        "status": "SUCCESS" | "RUNNING" | "ERROR" | "WAITING_INPUT" | null
+      }
+    }
+  ]
+}
+```
+
+**Errors**:
+- `404`: Environment not found
+- `503`: Superset connection error
+
+---
+
+### 2. Dataset Hub API
+
+#### GET /api/datasets
+
+**Purpose**: Fetch list of datasets from a specific environment for the Dataset Hub grid.
+
+**Query Parameters**:
+| Parameter | Type | Required | Description |
+|-----------|------|----------|-------------|
+| env_id | string | Yes | Environment ID to fetch datasets from |
+| search | string | No | Filter by table name |
+
+**Response**:
+```json
+{
+  "datasets": [
+    {
+      "id": "uuid-string",
+      "table_name": "fact_orders",
+      "schema": "public",
+      "database": "Production DB",
+      "mapped_fields": {
+        "total": 20,
+        "mapped": 15
+      },
+      "last_task": {
+        "task_id": "task-uuid",
+        "status": "SUCCESS" | null
+      }
+    }
+  ]
+}
+```
+
+---
+
+### 3. Activity API
+
+#### GET /api/activity
+
+**Purpose**: Fetch summary of active and recent tasks for the navbar indicator.
+
+**Response**:
+```json
+{
+  "active_count": 3,
+  "recent_tasks": [
+    {
+      "task_id": "task-uuid",
+      "resource_name": "Sales Report",
+      "resource_type": "dashboard",
+      "status": "RUNNING",
+      "started_at": "2026-02-09T10:00:00Z"
+    }
+  ]
+}
+```
+
+---
+
+### 4. Consolidated Settings API
+
+#### GET /api/settings
+
+**Purpose**: Fetch all settings categories for the consolidated settings page.
+
+**Response**:
+```json
+{
+  "environments": [
+    { "id": "1", "name": "Development", "url": "http://dev...", "status": "OK" }
+  ],
+  "connections": [
+    { "id": "1", "name": "Prod Clickhouse", "type": "clickhouse" }
+  ],
+  "llm": {
+    "provider": "openai",
+    "model": "gpt-4",
+    "enabled": true
+  },
+  "logging": {
+    "level": "INFO",
+    "task_log_level": "DEBUG",
+    "belief_scope_enabled": false
+  }
+}
+```
+
+---
+
+## WebSocket Events (Existing)
+
+The Task Drawer subscribes to existing WebSocket events:
+
+### task:status
+```json
+{
+  "task_id": "uuid",
+  "status": "RUNNING" | "SUCCESS" | "ERROR" | "WAITING_INPUT"
+}
+```
+
+### task:log
+```json
+{
+  "task_id": "uuid",
+  "timestamp": "2026-02-09T10:00:00Z",
+  "level": "INFO",
+  "source": "plugin",
+  "message": "Starting migration..."
+}
+```
+
+### task:input_required
+```json
+{
+  "task_id": "uuid",
+  "input_type": "password" | "mapping_selection",
+  "prompt": "Enter database password"
+}
+```
+
+---
+
+## Module Contracts (Semantic Protocol)
+
+### SidebarStore (frontend/src/lib/stores/sidebar.js)
+
+```javascript
+// [DEF:SidebarStore:Store]
+// @TIER: STANDARD
+// @PURPOSE: Manage sidebar visibility and navigation state
+// @LAYER: UI
+// @INVARIANT: isExpanded state is always synced with localStorage
+
+// @UX_STATE: Idle -> Sidebar visible with current state
+// @UX_STATE: Toggling -> Animation plays for 200ms
+
+export const sidebarStore = writable({
+  isExpanded: true,
+  activeCategory: 'dashboards',
+  activeItem: '/dashboards',
+  isMobileOpen: false
+});
+
+export function toggleSidebar() { /* ... */ }
+export function setActiveItem(path) { /* ... */ }
+// [/DEF:SidebarStore]
+```
+
+### TaskDrawerStore (frontend/src/lib/stores/taskDrawer.js)
+
+```javascript
+// [DEF:TaskDrawerStore:Store]
+// @TIER: CRITICAL
+// @PURPOSE: Manage Task Drawer visibility and resource-to-task mapping
+// @LAYER: UI
+// @INVARIANT: resourceTaskMap always reflects current task associations
+
+// @UX_STATE: Closed -> Drawer hidden, no active task
+// @UX_STATE: Open -> Drawer visible, logs streaming
+// @UX_STATE: InputRequired -> Interactive form rendered in drawer
+
+export const taskDrawerStore = writable({
+  isOpen: false,
+  activeTaskId: null,
+  resourceTaskMap: {}
+});
+
+export function openDrawerForTask(taskId) { /* ... */ }
+export function closeDrawer() { /* ... */ }
+export function updateResourceTask(resourceId, taskId, status) { /* ... */ }
+// [/DEF:TaskDrawerStore]
+```
+
+### ActivityStore (frontend/src/lib/stores/activity.js)
+
+```javascript
+// [DEF:ActivityStore:Store]
+// @TIER: STANDARD
+// @PURPOSE: Track active task count for navbar indicator
+// @LAYER: UI
+// @RELATION: DEPENDS_ON -> WebSocket connection
+
+export const activityStore = derived(taskDrawerStore, ($drawer) => {
+  const activeCount = Object.values($drawer.resourceTaskMap)
+    .filter(t => t.status === 'RUNNING').length;
+  return { activeCount };
+});
+// [/DEF:ActivityStore]
+```

specs/019-superset-ux-redesign/data-model.md

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+# Data Model: Superset-Style UX Redesign
+
+**Feature**: 019-superset-ux-redesign
+**Date**: 2026-02-09
+
+## Overview
+
+This feature primarily introduces frontend state management and UI components. No new database tables are required. The data model focuses on client-side stores for managing UI state.
+
+## Frontend Stores
+
+### 1. SidebarStore
+
+**Purpose**: Manage sidebar visibility and collapse state
+
+```typescript
+interface SidebarState {
+  isExpanded: boolean;      // true = full width, false = icons only
+  activeCategory: string;   // 'dashboards' | 'datasets' | 'storage' | 'admin'
+  activeItem: string;       // Current route path
+  isMobileOpen: boolean;    // For mobile overlay mode
+}
+```
+
+**Persistence**: localStorage key `sidebar_state`
+
+### 2. TaskDrawerStore
+
+**Purpose**: Manage Task Drawer visibility and resource-to-task mapping
+
+```typescript
+interface TaskDrawerState {
+  isOpen: boolean;
+  activeTaskId: string | null;
+  resourceTaskMap: Record<string, {
+    taskId: string;
+    status: 'IDLE' | 'RUNNING' | 'WAITING_INPUT' | 'SUCCESS' | 'ERROR';
+  }>;
+}
+```
+
+**Example**:
+```javascript
+resourceTaskMap: {
+  "dashboard-uuid-123": { taskId: "task-abc", status: "RUNNING" },
+  "dataset-uuid-456": { taskId: "task-def", status: "SUCCESS" }
+}
+```
+
+### 3. ActivityStore
+
+**Purpose**: Track count of active tasks for navbar indicator
+
+```typescript
+interface ActivityState {
+  activeCount: number;      // Number of RUNNING tasks
+  recentTasks: TaskSummary[]; // Last 5 tasks for quick access
+}
+
+interface TaskSummary {
+  taskId: string;
+  resourceName: string;
+  resourceType: 'dashboard' | 'dataset';
+  status: string;
+  startedAt: string;
+}
+```
+
+### 4. SettingsStore
+
+**Purpose**: Cache settings data for consolidated settings page
+
+```typescript
+interface SettingsState {
+  activeTab: 'environments' | 'connections' | 'llm' | 'logging' | 'system';
+  environments: Environment[];
+  connections: Connection[];
+  llmSettings: LLMSettings;
+  loggingSettings: LoggingSettings;
+}
+```
+
+## Backend Entities (Existing)
+
+The following entities are used but not modified:
+
+### Task (from `backend/src/models/task.py`)
+- `id`: UUID
+- `status`: Enum (RUNNING, SUCCESS, ERROR, WAITING_INPUT)
+- `plugin_name`: String
+- `created_at`: DateTime
+- `metadata`: JSON (includes `resource_id`, `resource_type`)
+
+### Environment (from `backend/src/models/connection.py`)
+- Used for Source Environment selector in hubs
+
+## State Transitions
+
+### Task Status in Resource Grid
+
+```
+IDLE → (user triggers action) → RUNNING
+RUNNING → (task needs input) → WAITING_INPUT
+RUNNING → (task completes) → SUCCESS
+RUNNING → (task fails) → ERROR
+WAITING_INPUT → (user provides input) → RUNNING
+```
+
+### Sidebar State Flow
+
+```
+Expanded ←→ Collapsed (user toggle)
+Hidden (mobile) → Overlay Open (hamburger click) → Hidden (outside click)
+```
+
+### Task Drawer State Flow
+
+```
+Closed → Open (click status badge or activity indicator)
+Open → Closed (click X or select different task)
+Open → Open+DifferentTask (click different status badge)
+```

specs/019-superset-ux-redesign/plan.md

@@ -0,0 +1,107 @@
+# Implementation Plan: Superset-Style UX Redesign
+
+**Branch**: `019-superset-ux-redesign` | **Date**: 2026-02-09 | **Spec**: [spec.md](./spec.md)
+**Input**: Feature specification from `/specs/019-superset-ux-redesign/spec.md`
+
+## Summary
+
+Redesign the application from a **Task-Centric** model (users navigate to tools) to a **Resource-Centric** model (users navigate to resources like Dashboards, Datasets). Key components include:
+- Persistent left sidebar with resource categories
+- Global Task Drawer for monitoring background operations
+- Dashboard Hub and Dataset Hub as primary management interfaces
+- Unified top navigation bar with activity indicator
+- Consolidated Settings section
+
+## Technical Context
+
+**Language/Version**: Python 3.9+ (Backend), Node.js 18+ (Frontend)
+**Primary Dependencies**: FastAPI, SvelteKit, Tailwind CSS, SQLAlchemy, WebSocket (existing)
+**Storage**: SQLite (tasks.db, auth.db, migrations.db) - no new database tables required
+**Testing**: pytest (backend), Vitest/Playwright (frontend)
+**Target Platform**: Web (Desktop primary, responsive for mobile)
+**Project Type**: Web application (frontend + backend)
+**Performance Goals**: Task Drawer opens < 200ms, sidebar animation < 300ms
+**Constraints**: No blocking modals for task inputs, real-time log streaming via WebSocket
+**Scale/Scope**: ~20 new frontend components, 5 new API endpoints, 3 new stores
+
+## Constitution Check
+
+*GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
+
+| Principle | Status | Notes |
+|-----------|--------|-------|
+| I. Semantic Protocol Compliance | ✅ PASS | All new components will use [DEF] anchors and @UX_STATE tags |
+| II. Everything is a Plugin | ✅ PASS | No new plugins required; existing plugins (Migration, Backup, Git) will be triggered from Resource Hubs |
+| III. Unified Frontend Experience | ✅ PASS | Using existing component library, i18n system, and requestApi wrapper |
+| IV. Security & Access Control | ✅ PASS | ADMIN section visibility controlled by existing RBAC |
+| V. Independent Testability | ✅ PASS | Each User Story has defined independent test scenarios |
+| VI. Asynchronous Execution | ✅ PASS | Task Drawer integrates with existing TaskManager and WebSocket |
+
+## Project Structure
+
+### Documentation (this feature)
+
+```text
+specs/019-superset-ux-redesign/
+├── plan.md              # This file
+├── spec.md              # Feature specification
+├── ux_reference.md      # UX mockups and flows
+├── research.md          # Phase 0 output
+├── data-model.md        # Phase 1 output
+├── quickstart.md        # Phase 1 output
+├── contracts/           # Phase 1 output
+│   └── api.md           # API contracts
+├── checklists/
+│   └── requirements.md  # Spec quality checklist
+└── tasks.md             # Phase 2 output (NOT created yet)
+```
+
+### Source Code (repository root)
+
+```text
+backend/
+├── src/
+│   ├── api/routes/
+│   │   ├── dashboards.py    # NEW: Dashboard hub API
+│   │   ├── datasets.py      # NEW: Dataset hub API
+│   │   └── settings.py      # EXTEND: Consolidated settings
+│   └── services/
+│       └── resource_service.py  # NEW: Shared resource logic
+└── tests/
+
+frontend/
+├── src/
+│   ├── lib/
+│   │   ├── components/
+│   │   │   ├── layout/
+│   │   │   │   ├── Sidebar.svelte          # NEW: Left sidebar
+│   │   │   │   ├── TopNavbar.svelte        # NEW: Top navigation
+│   │   │   │   ├── TaskDrawer.svelte       # NEW: Global task drawer
+│   │   │   │   └── Breadcrumbs.svelte      # NEW: Breadcrumb nav
+│   │   │   └── hubs/
+│   │   │       ├── DashboardHub.svelte     # NEW: Dashboard management
+│   │   │       ├── DatasetHub.svelte       # NEW: Dataset management
+│   │   │       └── SettingsPage.svelte     # NEW: Consolidated settings
+│   │   ├── stores/
+│   │   │   ├── sidebar.js      # NEW: Sidebar state
+│   │   │   ├── taskDrawer.js   # NEW: Drawer state + resource-task map
+│   │   │   └── activity.js     # NEW: Activity indicator count
+│   │   └── i18n/
+│   │       └── en.json         # EXTEND: New navigation labels
+│   └── routes/
+│       ├── /dashboards/+page.svelte    # NEW
+│       ├── /datasets/+page.svelte      # NEW
+│       ├── /settings/+page.svelte      # NEW
+│       └── /+layout.svelte             # EXTEND: Add sidebar + drawer
+└── tests/
+```
+
+**Structure Decision**: Web application structure with new `layout/` and `hubs/` component directories. The Sidebar and TaskDrawer live in the root `+layout.svelte` for global availability.
+
+## Complexity Tracking
+
+> No Constitution violations. All changes use existing patterns.
+
+| Violation | Why Needed | Simpler Alternative Rejected Because |
+|-----------|------------|-------------------------------------|
+| N/A | N/A | N/A |

specs/019-superset-ux-redesign/quickstart.md

@@ -0,0 +1,115 @@
+# Quickstart: Superset-Style UX Redesign
+
+**Feature**: 019-superset-ux-redesign
+**Date**: 2026-02-09
+
+## Prerequisites
+
+- Node.js 18+ (for frontend)
+- Python 3.9+ (for backend)
+- Existing backend running on `http://localhost:8000`
+- Existing frontend running on `http://localhost:5173`
+
+## Implementation Order
+
+### Phase 1: Core Layout (P1)
+
+1. **Create Sidebar Component** (`frontend/src/lib/components/layout/Sidebar.svelte`)
+   - Categories: DASHBOARDS, DATASETS, STORAGE, ADMIN
+   - Collapse/expand toggle
+   - Active item highlighting
+   - Mobile responsive (hamburger menu)
+
+2. **Create TopNavbar Component** (`frontend/src/lib/components/layout/TopNavbar.svelte`)
+   - Logo/brand
+   - Search placeholder
+   - Activity indicator (badge count)
+   - User menu dropdown
+
+3. **Create SidebarStore** (`frontend/src/lib/stores/sidebar.js`)
+   - `isExpanded` state with localStorage persistence
+   - `activeCategory` and `activeItem` tracking
+
+4. **Update Root Layout** (`frontend/src/routes/+layout.svelte`)
+   - Import Sidebar and TopNavbar
+   - Create main content area with proper spacing
+
+### Phase 2: Task Drawer (P1)
+
+5. **Create TaskDrawerStore** (`frontend/src/lib/stores/taskDrawer.js`)
+   - `isOpen` state
+   - `activeTaskId`
+   - `resourceTaskMap` for resource-to-task mapping
+
+6. **Create TaskDrawer Component** (`frontend/src/lib/components/layout/TaskDrawer.svelte`)
+   - Slide-out panel from right
+   - Log stream area (reuse TaskLogViewer)
+   - Interactive area for inputs (PasswordPrompt, etc.)
+
+7. **Create ActivityStore** (`frontend/src/lib/stores/activity.js`)
+   - Derived store counting active tasks
+   - Connect to WebSocket for real-time updates
+
+### Phase 3: Resource Hubs (P2)
+
+8. **Create Dashboard Hub** (`frontend/src/routes/dashboards/+page.svelte`)
+   - Environment selector
+   - Dashboard grid with columns: Title, Slug, Git Status, Last Task, Actions
+   - Actions menu: Migrate, Backup, Git Operations
+
+9. **Create Dataset Hub** (`frontend/src/routes/datasets/+page.svelte`)
+   - Environment selector
+   - Dataset grid with columns: Table Name, Schema, Mapped Fields, Last Task, Actions
+
+10. **Create Backend APIs** (`backend/src/api/routes/`)
+    - `GET /api/dashboards?env_id=X`
+    - `GET /api/datasets?env_id=X`
+    - `GET /api/activity`
+
+### Phase 4: Settings Consolidation (P2)
+
+11. **Create Settings Page** (`frontend/src/routes/settings/+page.svelte`)
+    - Tabbed interface: Environments, Connections, LLM, Logging, System
+    - Role-based visibility for admin tabs
+
+12. **Create Settings API** (`backend/src/api/routes/settings.py`)
+    - `GET /api/settings` (consolidated)
+
+## Testing
+
+### Manual Testing Checklist
+
+- [ ] Sidebar collapses/expands with animation
+- [ ] Sidebar state persists after page refresh
+- [ ] Activity indicator shows correct count
+- [ ] Task Drawer opens when clicking status badge
+- [ ] Task Drawer shows real-time logs
+- [ ] Dashboard Hub loads dashboards from selected environment
+- [ ] Actions menu triggers correct operations
+- [ ] Settings page shows all categories (admin) / limited (non-admin)
+
+### Automated Tests
+
+```bash
+# Frontend component tests
+cd frontend && npm run test -- --grep "Sidebar|TaskDrawer|DashboardHub"
+
+# Backend API tests
+cd backend && pytest tests/test_dashboards_api.py tests/test_datasets_api.py
+```
+
+## Key Files Reference
+
+| Component | Path |
+|-----------|------|
+| Sidebar | `frontend/src/lib/components/layout/Sidebar.svelte` |
+| TopNavbar | `frontend/src/lib/components/layout/TopNavbar.svelte` |
+| TaskDrawer | `frontend/src/lib/components/layout/TaskDrawer.svelte` |
+| DashboardHub | `frontend/src/routes/dashboards/+page.svelte` |
+| DatasetHub | `frontend/src/routes/datasets/+page.svelte` |
+| SettingsPage | `frontend/src/routes/settings/+page.svelte` |
+| sidebarStore | `frontend/src/lib/stores/sidebar.js` |
+| taskDrawerStore | `frontend/src/lib/stores/taskDrawer.js` |
+| activityStore | `frontend/src/lib/stores/activity.js` |
+| dashboards API | `backend/src/api/routes/dashboards.py` |
+| datasets API | `backend/src/api/routes/datasets.py` |

specs/019-superset-ux-redesign/research.md

@@ -0,0 +1,109 @@
+# Research: Superset-Style UX Redesign
+
+**Feature**: 019-superset-ux-redesign
+**Date**: 2026-02-09
+
+## Research Tasks
+
+### 1. SvelteKit Layout Patterns for Persistent UI
+
+**Decision**: Use root `+layout.svelte` for Sidebar and TaskDrawer
+
+**Rationale**:
+- SvelteKit's layout components persist across route changes by default
+- Placing Sidebar and TaskDrawer in the root layout ensures they are always available
+- Slot-based composition allows content pages to render in the main area
+
+**Alternatives Considered**:
+- Per-page imports: Rejected due to code duplication and state management complexity
+- Web Components: Rejected as SvelteKit native layouts are more idiomatic
+
+### 2. Real-time Task Updates via WebSocket
+
+**Decision**: Extend existing WebSocket infrastructure for Task Drawer
+
+**Rationale**:
+- Backend already has WebSocket support in `backend/src/app.py`
+- TaskManager emits events that can be broadcast to connected clients
+- Existing `TaskLogViewer` component already subscribes to task updates
+
+**Implementation Notes**:
+- Create a new store `taskDrawer.js` that subscribes to WebSocket events
+- Map resource IDs to task IDs using a reactive `resourceTaskMap` store
+- Activity indicator reads from a derived store counting active tasks
+
+### 3. Sidebar State Persistence
+
+**Decision**: Use Svelte stores with `localStorage` sync
+
+**Rationale**:
+- User preference for collapsed/expanded sidebar should persist across sessions
+- Svelte's `writable` stores can be extended with localStorage sync
+- Pattern already used in other parts of the application
+
+**Code Pattern**:
+```javascript
+function persistentStore(key, defaultValue) {
+  const stored = localStorage.getItem(key);
+  const store = writable(stored ? JSON.parse(stored) : defaultValue);
+  store.subscribe(value => localStorage.setItem(key, JSON.stringify(value)));
+  return store;
+}
+```
+
+### 4. Resource-to-Task Mapping
+
+**Decision**: Create a new store `resourceTaskMap` in `taskDrawer.js`
+
+**Rationale**:
+- Need to track which task is associated with which resource (dashboard/dataset)
+- When user clicks a status badge, the drawer opens with the correct task
+- Map structure: `{ resourceUuid: { taskId, status } }`
+
+**Alternatives Considered**:
+- Backend tracking: Rejected to avoid additional API calls
+- URL-based task ID: Rejected as it doesn't support background tasks
+
+### 5. Settings Consolidation
+
+**Decision**: Create a unified Settings page with tabbed navigation
+
+**Rationale**:
+- Current settings are scattered across multiple pages
+- Tabbed interface allows grouping: Environments, Connections, LLM, Logging, System
+- Existing settings APIs can be consolidated into a single route
+
+**Implementation Notes**:
+- Reuse existing settings components where possible
+- Add role-based visibility for admin-only tabs
+- Use SvelteKit's nested routes for each settings tab
+
+### 6. Responsive Sidebar Behavior
+
+**Decision**: CSS media queries + conditional rendering
+
+**Rationale**:
+- Desktop (≥1024px): Sidebar visible by default, collapsible
+- Tablet (768-1023px): Sidebar collapsed to icons
+- Mobile (<768px): Sidebar hidden, hamburger menu in top navbar
+
+**Implementation Notes**:
+- Use Tailwind's responsive prefixes (`md:`, `lg:`)
+- Overlay mode on mobile with backdrop click-to-close
+- Store sidebar state in `sidebar.js` store
+
+## Resolved Clarifications
+
+| Item | Resolution |
+|------|------------|
+| Animation timing | Sidebar: 200ms ease-in-out, Drawer: 150ms slide |
+| Empty states | Show illustration + message + CTA button |
+| Breadcrumb depth limit | Truncate middle items with ellipsis after 3 levels |
+| Activity badge polling | Real-time via WebSocket, no polling needed |
+
+## Dependencies Confirmed
+
+- `backend/src/core/task_manager`: ✅ Available for task state
+- `backend/src/core/superset_client`: ✅ Available for resource fetching
+- `frontend/src/lib/api.js`: ✅ requestApi wrapper available
+- `frontend/src/lib/i18n`: ✅ i18n system available

specs/019-superset-ux-redesign/spec.md

@@ -0,0 +1,243 @@
+# Feature Specification: Superset-Style UX Redesign
+
+**Feature Branch**: `019-superset-ux-redesign`  
+**Reference UX**: [ux_reference.md](./ux_reference.md)
+**Created**: 2026-02-08  
+**Status**: Verified
+**Input**: User description: "Я хочу переработать пользовательский UX полностью, уйдя от карточек дашборда к структуре сходной к Apache Superset. Переход к Resource-Centric модели."
+
+## User Scenarios & Testing *(mandatory)*
+
+### User Story 1 - Resource-Centric Navigation (Priority: P1)
+
+As a user, I want to navigate the application through a persistent left sidebar that focuses on resources (Dashboards, Datasets, Storage) rather than tools, so I can manage my data objects more intuitively.
+
+**Why this priority**: This is the core shift in the application's philosophy. It defines how users find and interact with everything else.
+
+**Independent Test**: Can be tested by clicking "Dashboards" or "Datasets" in the sidebar and verifying the correct resource hub loads.
+
+**Acceptance Scenarios**:
+
+1. [x] **Given** the application has loaded, **When** I view the left sidebar, **Then** I see primary resource links: DASHBOARDS, DATASETS, STORAGE.
+2. [x] **Given** I am on any page, **When** I click "Dashboards", **Then** I am taken to the Dashboard Hub showing a list of all available dashboards from the selected environment.
+3. [x] **Given** I am on a mobile device, **When** I view the application, **Then** the sidebar is hidden by default and accessible via hamburger menu.
+
+---
+
+### User Story 2 - Global Task Drawer & Activity Monitoring (Priority: P1)
+
+As a user, I want to see a global activity indicator and a slide-out Task Drawer, so I can monitor running tasks (migrations, backups) without losing my current context in a resource list.
+
+**Why this priority**: Context preservation is a key goal of the redesign. Users must be able to trigger an action and see its progress without leaving the page.
+
+**Independent Test**: Trigger a "Backup" on a dashboard and verify the Task Drawer opens automatically with the log stream.
+
+**Acceptance Scenarios**:
+
+1. [x] **Given** a task is running, **When** I look at the navbar, **Then** I see an "Activity" indicator with the count of active tasks.
+2. [x] **Given** I click the "Activity" indicator or a status badge in a grid, **When** the Task Drawer opens, **Then** I see the real-time log stream for the selected task.
+3. [x] **Given** a task requires input (e.g., password), **When** the Task Drawer is open, **Then** the input form is rendered inside the drawer's interactive area.
+
+---
+
+### User Story 3 - Dashboard Hub Management (Priority: P1)
+
+As a user, I want a central hub for dashboards where I can select multiple dashboards, see their Git status, and trigger bulk actions like Migrate or Backup, so I don't have to switch between different tools or perform actions one by one.
+
+**Why this priority**: Consolidates multiple existing tools (Migration, Git, Backup) into a single resource-focused view with bulk operations for efficiency.
+
+**Independent Test**: Navigate to `/dashboards`, select an environment, verify the grid displays checkboxes, search, pagination, and bulk action buttons.
+
+**Acceptance Scenarios**:
+
+1. [x] **Given** I am in the Dashboard Hub, **When** I view the grid, **Then** I see checkboxes for each dashboard, "Select All" and "Select Visible" buttons, and a floating bulk action panel.
+2. [x] **Given** I select multiple dashboards, **When** the floating panel appears, **Then** I see "[✓ N selected] [Migrate] [Backup]" buttons.
+3. [x] **Given** a dashboard is linked to Git, **When** I view the grid, **Then** I see its current branch and sync status (OK/Diff).
+4. [x] **Given** I click "Migrate" with multiple dashboards selected, **When** the migration modal opens, **Then** it shows source environment (read-only), target environment dropdown, database mappings with match percentages, and selected dashboards list.
+5. [x] **Given** I click "Backup" with multiple dashboards selected, **When** the backup modal opens, **Then** it shows environment (read-only), selected dashboards list, and options for one-time or scheduled backup with cron expression.
+6. [x] **Given** I use the search box, **When** I type a dashboard name, **Then** the list filters in real-time.
+7. [x] **Given** I view the grid, **When** I look at the bottom, **Then** I see pagination controls with page numbers, "Rows per page" dropdown, and "Showing X-Y of Z total" indicator.
+
+---
+
+### User Story 4 - Dataset Hub & Semantic Mapping (Priority: P1)
+
+As a user, I want a dedicated hub for datasets where I can manage documentation, field mappings, and perform bulk operations, so I can ensure data consistency across environments efficiently.
+
+**Why this priority**: Moves dataset management from a secondary tool to a primary resource with bulk operations for efficiency.
+
+**Independent Test**: Navigate to `/datasets`, select an environment, and verify the grid displays dataset metadata including database, schema, tables, columns, mapping percentage, and bulk action buttons.
+
+**Acceptance Scenarios**:
+
+1. [x] **Given** I am in the Dataset Hub, **When** I view the grid, **Then** I see columns: Name, Database, Schema, Tables (count of SQL tables), Columns (X/Y mapped), Mapped (%), Updated By, and Actions.
+2. [x] **Given** I select multiple datasets, **When** floating panel appears, **Then** I see "[✓ N selected] [Map Columns] [Generate Docs] [Validate]" buttons.
+3. [x] **Given** I click "Map Columns" with multiple datasets selected, **When** the mapping modal opens, **Then** it shows source selection (PostgreSQL Comments or XLSX), connection dropdown, and preview of current vs new verbose names.
+4. [x] **Given** I click "Generate Docs", **When** the documentation modal opens, **Then** it shows selected datasets list, LLM provider selection, options for documentation scope, and language selection.
+5. [x] **Given** I click on a dataset name, **When** the detail view opens, **Then** I see all SQL tables extracted from the dataset with column counts, mapping percentages, and linked dashboards.
+6. [x] **Given** I use the search box, **When** I type a dataset name, schema, or table name, **Then** the list filters in real-time.
+7. [x] **Given** I view the dataset detail, **When** I look at "Linked Dashboards", **Then** I see a list of dashboards that use this dataset (requires dataset-to-dashboard relationship algorithm).
+
+---
+
+### User Story 5 - Unified Top Navigation Bar (Priority: P1)
+
+As a user, I want a consistent top navigation bar with a global activity indicator, search placeholder, and user menu, so I can always access critical functions regardless of my current location in the app.
+
+**Why this priority**: The top navbar is the global command center. It must be established early to provide consistent access to activity monitoring and user settings.
+
+**Independent Test**: Navigate to any page and verify the top bar shows: Logo, Search, Activity indicator, and User menu.
+
+**Acceptance Scenarios**:
+
+1. [x] **Given** the application has loaded, **When** I view the top navigation bar, **Then** I see (from left to right): Logo/Brand, Global Search (placeholder), Activity indicator with badge count, User avatar/menu.
+2. [x] **Given** I click the User avatar, **When** the dropdown opens, **Then** I see options for: Profile, Settings, Logout.
+3. [x] **Given** there are running tasks, **When** I view the Activity indicator, **Then** I see a badge with the count of active tasks.
+4. [x] **Given** I click the Activity indicator, **When** the Task Drawer is not open, **Then** the Task Drawer slides out showing the list of recent/active tasks.
+
+---
+
+### User Story 6 - Consolidated Settings Experience (Priority: P2)
+
+As an administrator, I want all system settings (Environments, Connections, LLM, Logging) consolidated into a single "Settings" section accessible from the sidebar, so I don't have to hunt through multiple pages to configure the system.
+
+**Why this priority**: Reduces cognitive load by grouping all configuration in one place. Depends on navigation being established.
+
+**Independent Test**: Navigate to Settings from the sidebar and verify all configuration categories are listed.
+
+**Acceptance Scenarios**:
+
+1. [x] **Given** I am logged in as admin, **When** I click "Settings" in the sidebar, **Then** I am taken to a Settings overview page with categories: Environments, Connections, LLM Providers, Logging, System.
+2. [x] **Given** I am on the Settings page, **When** I click "Environments", **Then** I see the environment management interface (add/edit/delete Superset instances).
+3. [x] **Given** I am on the Settings page, **When** I click "Connections", **Then** I see database connection configurations.
+4. [x] **Given** I am a non-admin user, **When** I view the sidebar, **Then** the "Settings" section is either hidden or shows only user-preference items (theme, language).
+
+---
+
+### Edge Cases
+
+- [x] **Deep Navigation**: Breadcrumbs should handle long paths by truncating middle segments with an ellipsis.
+- [x] **Task Interruption**: If the drawer is closed while a task is running, the task must continue in the background, and the navbar indicator must reflect its status.
+- [x] **Permission Changes**: If a user's role changes, the sidebar must immediately hide/show restricted sections (like ADMIN) without a full page reload if possible.
+- [x] **Empty States**: Resource hubs must show helpful empty states when no environments are configured or no resources are found.
+
+## Requirements *(mandatory)*
+
+### Functional Requirements
+
+**Navigation & Layout**
+- [x] **FR-001**: System MUST implement a persistent left sidebar with resource-centric categories (DASHBOARDS, DATASETS, STORAGE, ADMIN).
+- [x] **FR-002**: System MUST implement a Global Task Drawer that slides out from the right, capable of displaying log streams and interactive forms.
+- [x] **FR-003**: System MUST provide a top navigation bar containing: Logo/Brand, Global Search (placeholder), Activity indicator, User menu.
+- [x] **FR-004**: System MUST display breadcrumb navigation at the top of the content area for all pages.
+- [x] **FR-005**: System MUST persist sidebar collapse/expand state in local storage.
+- [x] **FR-006**: System MUST highlight the active resource/category in the sidebar.
+
+**Resource Hubs**
+- [x] **FR-007**: System MUST implement a Dashboard Hub (`/dashboards`) that aggregates Migration, Git, and Backup actions for individual and multiple dashboards.
+- [x] **FR-008**: System MUST implement a Dataset Hub (`/datasets`) for managing table metadata, field mappings, and documentation generation.
+- [x] **FR-009**: System MUST support a "Source Environment" selector at the top of resource hubs to fetch metadata from different Superset instances.
+
+**Bulk Operations & Selection**
+- [x] **FR-010**: System MUST provide checkboxes for each resource (dashboard/dataset) in the grid for multi-selection.
+- [x] **FR-011**: System MUST provide "Select All" button to select all resources across all pages.
+- [x] **FR-012**: System MUST provide "Select Visible" button to select only resources on the current page.
+- [x] **FR-013**: System MUST display a floating action panel at the bottom when resources are selected, showing count and available bulk actions.
+- [x] **FR-014**: System MUST support bulk migration of multiple dashboards with target environment selection and database mapping configuration.
+- [x] **FR-015**: System MUST support bulk backup of multiple dashboards with options for one-time or scheduled backup (cron expression).
+- [x] **FR-016**: System MUST support bulk column mapping for multiple datasets from PostgreSQL comments or XLSX files.
+- [x] **FR-017**: System MUST support bulk documentation generation for multiple datasets using LLM providers.
+
+**Pagination & Search**
+- [x] **FR-018**: System MUST implement classic pagination with page numbers and "Rows per page" dropdown (10, 25, 50, 100).
+- [x] **FR-019**: System MUST display "Showing X-Y of Z total" indicator in pagination controls.
+- [x] **FR-020**: System MUST provide real-time search functionality that filters the resource list as user types.
+- [x] **FR-021**: System MUST preserve selected resources when changing pages (selection state persists across pagination).
+
+**Database Mapping Integration**
+- [x] **FR-022**: System MUST display database mappings between source and target environments in the bulk migration modal.
+- [x] **FR-023**: System MUST show match confidence percentage for each database mapping (from fuzzy matching).
+- [x] **FR-024**: System MUST allow editing database mappings directly from the bulk migration modal.
+
+**Backup Scheduling**
+- [x] **FR-025**: System MUST support one-time backup for selected dashboards.
+- [x] **FR-026**: System MUST support scheduled backup using cron expressions for selected dashboards.
+- [x] **FR-027**: System MUST provide help documentation for cron syntax in the backup modal.
+
+**Dataset Management**
+- [x] **FR-028**: System MUST extract SQL table names from dataset SQL scripts and display them in the dataset detail view.
+- [x] **FR-029**: System MUST calculate and display column mapping percentage (X/Y columns mapped) for each dataset and table.
+- [x] **FR-030**: System MUST display dataset metadata: Name, Database, Schema, Tables count, Columns count, Mapping percentage, Updated By, and Last Updated timestamp.
+- [x] **FR-031**: System MUST link datasets to dashboards and display linked dashboards in the dataset detail view.
+- [x] **FR-032**: System MUST allow column mapping from PostgreSQL comments (via external connection) or XLSX file upload.
+- [x] **FR-033**: System MUST provide preview of current vs new verbose names before applying column mappings.
+
+**Documentation Generation**
+- [x] **FR-034**: System MUST support LLM-based documentation generation for datasets.
+- [x] **FR-035**: System MUST allow selection of LLM provider for documentation generation.
+- [x] **FR-036**: System MUST provide options for documentation scope (column descriptions, usage examples, business context).
+- [x] **FR-037**: System MUST support language selection for generated documentation.
+
+**Task Management**
+- [x] **FR-010**: System MUST provide a Navbar "Activity" indicator showing the number of active background tasks.
+- [x] **FR-011**: System MUST render interactive task prompts (like `PasswordPrompt`) inside the Task Drawer instead of global modals.
+- [x] **FR-012**: System MUST allow users to close the Task Drawer while a task continues running in the background.
+
+**Settings & Configuration**
+- [x] **FR-013**: System MUST consolidate all admin settings into a single "Settings" section with categories: Environments, Connections, LLM Providers, Logging, System.
+- [x] **FR-014**: System MUST hide admin-only settings categories from non-admin users.
+- [x] **FR-015**: System MUST provide user-preference settings (theme, language) accessible to all users.
+
+### Key Entities
+
+- **Resource (Dashboard/Dataset)**: The primary object of management, identified by a unique ID/Slug.
+- **Task**: An asynchronous operation (Migration, Backup, Git Sync) associated with a Resource.
+- **Task Drawer**: A global UI component for monitoring and interacting with Tasks.
+- **Environment**: A Superset instance configuration (Source/Target) used to fetch or deploy resources.
+
+## Success Criteria *(mandatory)*
+
+### Measurable Outcomes
+
+- **SC-001**: Users can select multiple dashboards/datasets using checkboxes, "Select All", and "Select Visible" buttons.
+- **SC-002**: Users can trigger bulk migration for multiple dashboards in exactly 3 clicks (select → Migrate → confirm).
+- **SC-003**: Users can trigger bulk backup for multiple dashboards with scheduling options (one-time or cron).
+- **SC-004**: Task Drawer opens and starts streaming logs within 200ms of a bulk action start.
+- **SC-005**: 100% of existing "Tool" functionality (Migration, Git, Mapper, Backup) is accessible via the new Resource Hubs.
+- **SC-006**: Users can monitor running tasks while simultaneously browsing other resources in the grid.
+- **SC-007**: Zero "blocking" modals used for task-related inputs; all moved to the Task Drawer.
+- **SC-008**: Database mappings are displayed with match percentages in bulk migration modal.
+- **SC-009**: Dataset grid displays all required metadata: Database, Schema, Tables, Columns, Mapping %, Updated By.
+- **SC-010**: Search filters resource lists in real-time as user types.
+- **SC-011**: Pagination preserves selected resources across page changes.
+- **SC-012**: Bulk column mapping supports PostgreSQL comments and XLSX file upload with preview.
+
+## Assumptions
+
+- The backend `task_manager` already supports task IDs and log streaming (confirmed by existing code).
+- `superset_client` can fetch dashboard/dataset lists efficiently.
+- Users prefer a "Resource-First" workflow similar to modern data platforms.
+- Database mappings can be retrieved from `MappingService` and displayed with fuzzy match confidence percentages.
+- Backup scheduling via cron expressions is supported by `SchedulerService`.
+- SQL table names can be extracted from dataset SQL scripts for display in Dataset Hub.
+- Dataset-to-dashboard relationships can be established by analyzing dashboard chart dependencies.
+- LLM providers are configured and available for documentation generation.
+
+## Dependencies
+
+- `backend/src/core/task_manager`: For task state and log persistence.
+- `frontend/src/components/TaskLogViewer`: To be integrated into the Task Drawer.
+- `frontend/src/lib/stores/tasks.js`: New store required to track resource-to-task mapping.
+- `backend/src/services/mapping_service`: For retrieving database mappings and fuzzy matching suggestions.
+- `backend/src/core/scheduler`: For backup scheduling with cron expressions.
+- `backend/src/plugins/mapper.py`: For column mapping from PostgreSQL comments or XLSX files.
+- `backend/src/plugins/llm_analysis`: For LLM-based documentation generation.
+- `backend/src/core/utils/dataset_mapper`: For extracting SQL table names from dataset scripts.
+
+## Out of Scope
+
+- Redesigning the actual Superset dashboard viewing experience (we manage metadata, not the iframe).
+- Real-time collaboration features (multiple users editing the same mapping).
+- Mobile-first optimization (responsive is required, but desktop is the primary target).
+- Implementing SQL table name extraction algorithm from dataset scripts (assumed to be developed separately).
+- Implementing dataset-to-dashboard relationship algorithm (assumed to be developed separately).

specs/019-superset-ux-redesign/tasks.md

@@ -0,0 +1,287 @@
+# Tasks: Superset-Style UX Redesign
+
+**Input**: Design documents from `/specs/019-superset-ux-redesign/`
+**Prerequisites**: plan.md ✅, spec.md ✅, research.md ✅, data-model.md ✅, contracts/ ✅
+
+**Tests**: Not explicitly requested - implementation tasks only.
+
+**Organization**: Tasks are grouped by user story to enable independent implementation and testing of each story.
+
+## Format: `[ID] [P?] [Story] Description`
+
+- **[P]**: Can run in parallel (different files, no dependencies)
+- **[Story]**: Which user story this task belongs to (e.g., US1, US2, US3)
+- Include exact file paths in descriptions
+
+## Path Conventions
+
+- **Web app**: `backend/src/`, `frontend/src/`
+
+---
+
+## Phase 1: Setup (Shared Infrastructure)
+
+**Purpose**: Create new directory structure and stores for layout state
+
+- [x] T001 Create `frontend/src/lib/components/layout/` directory for shared layout components
+- [x] T002 Create `frontend/src/lib/components/hubs/` directory for resource hub pages
+- [x] T003 [P] Create `frontend/src/lib/stores/sidebar.js` with persistentStore pattern for sidebar state
+- [x] T004 [P] Create `frontend/src/lib/stores/taskDrawer.js` with resourceTaskMap store
+- [x] T005 [P] Create `frontend/src/lib/stores/activity.js` as derived store from taskDrawer
+
+---
+
+## Phase 2: Foundational (Blocking Prerequisites)
+
+**Purpose**: Core layout components that MUST be complete before ANY user story can be implemented
+
+**⚠️ CRITICAL**: No user story work can begin until this phase is complete
+
+- [x] T006 Create `frontend/src/lib/components/layout/Sidebar.svelte` with categories: DASHBOARDS, DATASETS, STORAGE, ADMIN
+- [x] T007 Create `frontend/src/lib/components/layout/TopNavbar.svelte` with Logo, Search placeholder, Activity indicator, User menu
+- [x] T008 Create `frontend/src/lib/components/layout/Breadcrumbs.svelte` for page hierarchy navigation
+- [x] T009 Update `frontend/src/routes/+layout.svelte` to include Sidebar, TopNavbar, and main content area
+- [x] T010 Add i18n keys for navigation labels in `frontend/src/lib/i18n/translations/en.json`
+- [x] T011 Add i18n keys for navigation labels in `frontend/src/lib/i18n/translations/ru.json`
+
+**Checkpoint**: Foundation ready - user story implementation can now begin
+
+---
+
+## Phase 3: User Story 1 - Resource-Centric Navigation (Priority: P1) 🎯 MVP
+
+**Goal**: Users can navigate through a persistent left sidebar with resource categories
+
+**Independent Test**: Click "Dashboards" or "Datasets" in sidebar and verify correct hub loads
+
+### Implementation for User Story 1
+
+- [x] T012 [US1] Implement sidebar collapse/expand toggle with animation in `frontend/src/lib/components/layout/Sidebar.svelte`
+- [x] T013 [US1] Add mobile hamburger menu toggle in `frontend/src/lib/components/layout/TopNavbar.svelte`
+- [x] T014 [US1] Implement active item highlighting in sidebar using `sidebarStore`
+- [x] T015 [US1] Add localStorage persistence for sidebar state (collapsed/expanded)
+- [x] T016 [US1] Implement responsive sidebar (overlay mode on mobile < 768px)
+- [x] T017 [US1] Verify implementation matches ux_reference.md (Sidebar mockups)
+
+**Checkpoint**: Sidebar navigation fully functional and responsive
+
+---
+
+## Phase 4: User Story 2 - Global Task Drawer & Activity Monitoring (Priority: P1) 🎯 MVP
+
+**Goal**: Users can monitor running tasks without losing context via a slide-out drawer
+
+**Independent Test**: Trigger a Backup and verify Task Drawer opens with log stream
+
+### Implementation for User Story 2
+
+- [x] T018 [US2] Create `frontend/src/lib/components/layout/TaskDrawer.svelte` as slide-out panel from right
+- [x] T019 [US2] Integrate existing `TaskLogViewer` component inside Task Drawer
+- [x] T020 [US2] Implement Activity indicator badge in TopNavbar showing `activeCount` from store
+- [x] T021 [US2] Connect Task Drawer to WebSocket for real-time log streaming
+- [x] T022 [US2] Implement interactive area in drawer for `PasswordPrompt` and other inputs
+- [x] T023 [US2] Add close button that allows task to continue running in background
+- [x] T024 [US2] Implement drawer open trigger from Activity indicator click
+- [x] T025 [US2] Verify implementation matches ux_reference.md (Task Drawer mockup)
+
+**Checkpoint**: Task Drawer fully functional with real-time logs
+
+---
+
+## Phase 5: User Story 5 - Unified Top Navigation Bar (Priority: P1) 🎯 MVP
+
+**Goal**: Consistent top navbar with Logo, Search, Activity, and User menu
+
+**Independent Test**: Navigate to any page and verify top bar shows all elements
+
+### Implementation for User Story 5
+
+- [x] T026 [US5] Implement Logo/Brand link in TopNavbar that returns to Home
+- [x] T027 [US5] Add Global Search placeholder (non-functional, for future) in TopNavbar
+- [x] T028 [US5] Implement User menu dropdown with Profile, Settings, Logout options
+- [x] T029 [US5] Connect User menu Logout to authentication logout flow
+- [x] T030 [US5] Verify implementation matches ux_reference.md (Top Navigation Bar mockup)
+
+**Checkpoint**: Top navbar complete with all elements
+
+---
+
+## Phase 6: User Story 3 - Dashboard Hub Management (Priority: P1)
+
+**Goal**: Central hub for dashboards with bulk selection, Git status, and action triggers
+
+**Independent Test**: Navigate to `/dashboards`, select environment, verify grid displays correctly with checkboxes, pagination, and search
+
+### Backend for User Story 3
+
+- [x] T031 [P] [US3] Create `backend/src/api/routes/dashboards.py` with GET /api/dashboards endpoint
+- [x] T032 [P] [US3] Create `backend/src/services/resource_service.py` for shared resource fetching logic
+- [x] T033 [US3] Implement dashboard list fetching with Git status and last task status
+- [x] T034 [US3] Add pagination support to GET /api/dashboards endpoint (page, page_size parameters)
+- [x] T035 [US3] Implement bulk migration endpoint POST /api/dashboards/migrate with target environment and dashboard IDs
+- [x] T036 [US3] Implement bulk backup endpoint POST /api/dashboards/backup with optional cron schedule
+- [x] T037 [US3] Add database mappings retrieval from MappingService for migration modal
+
+### Frontend for User Story 3
+
+- [x] T038 [US3] Create `frontend/src/routes/dashboards/+page.svelte` as Dashboard Hub
+- [x] T039 [US3] Implement environment selector dropdown at top of Dashboard Hub
+- [x] T040 [US3] Create dashboard grid with checkboxes, columns: Title, Slug, Git Status, Last Task, Actions
+- [x] T041 [US3] Implement "Select All" and "Select Visible" buttons in toolbar
+- [x] T042 [US3] Add real-time search input that filters dashboard list
+- [x] T043 [US3] Implement pagination controls with page numbers and "Rows per page" dropdown
+- [x] T044 [US3] Create floating bulk action panel at bottom: "[✓ N selected] [Migrate] [Backup]"
+- [x] T045 [US3] Implement Bulk Migration modal with target environment, database mappings, and selected dashboards list
+- [x] T046 [US3] Implement Bulk Backup modal with one-time/scheduled options and cron expression
+- [x] T047 [US3] Implement individual Actions menu with Migrate, Backup, Git Operations options
+- [x] T048 [US3] Connect Actions menu to existing plugin triggers (Migration, Backup, Git)
+- [x] T049 [US3] Implement status badge click to open Task Drawer with correct task
+- [x] T050 [US3] Add empty state when no environments configured or no dashboards found
+- [x] T051 [US3] Verify implementation matches ux_reference.md (Dashboard Hub Grid mockup)
+
+**Checkpoint**: Dashboard Hub fully functional with bulk operations
+
+---
+
+## Phase 7: User Story 4 - Dataset Hub & Semantic Mapping (Priority: P1)
+
+**Goal**: Dedicated hub for datasets with bulk operations, mapping progress, and documentation generation
+
+**Independent Test**: Navigate to `/datasets`, select environment, verify grid displays correctly with checkboxes and bulk actions
+
+### Backend for User Story 4
+
+- [x] T052 [P] [US4] Create `backend/src/api/routes/datasets.py` with GET /api/datasets endpoint
+- [x] T053 [US4] Implement dataset list fetching with mapped fields count and SQL table extraction
+- [x] T054 [US4] Add pagination support to GET /api/datasets endpoint (page, page_size parameters)
+- [x] T055 [US4] Implement bulk column mapping endpoint POST /api/datasets/map-columns with source selection
+- [x] T056 [US4] Implement bulk documentation generation endpoint POST /api/datasets/generate-docs
+- [x] T057 [US4] Add dataset-to-dashboard relationship retrieval for linked dashboards display
+
+### Frontend for User Story 4
+
+- [x] T058 [US4] Create `frontend/src/routes/datasets/+page.svelte` as Dataset Hub
+- [x] T059 [US4] Implement dataset grid with checkboxes, columns: Name, Database, Schema, Tables, Columns, Mapped %, Updated By, Actions
+- [x] T060 [US4] Implement "Select All" and "Select Visible" buttons in toolbar
+- [x] T061 [US4] Add real-time search input that filters dataset list by name, schema, or table names
+- [x] T062 [US4] Implement pagination controls with page numbers and "Rows per page" dropdown
+- [x] T063 [US4] Create floating bulk action panel at bottom: "[✓ N selected] [Map Columns] [Generate Docs] [Validate]"
+- [x] T064 [US4] Implement Column Mapping modal with PostgreSQL comments/XLSX source selection and preview
+- [x] T065 [US4] Implement Documentation Generation modal with LLM provider selection and options
+- [x] T066 [US4] Create dataset detail view showing SQL tables, column counts, mapping percentages, and linked dashboards
+- [x] T067 [US4] Add empty state when no datasets found
+- [x] T068 [US4] Verify implementation matches ux_reference.md (Dataset Hub Grid mockup)
+
+**Checkpoint**: Dataset Hub fully functional with bulk operations
+
+---
+
+## Phase 8: User Story 6 - Consolidated Settings Experience (Priority: P2)
+
+**Goal**: All settings consolidated into single section with categories
+
+**Independent Test**: Navigate to Settings and verify all categories listed
+
+### Backend for User Story 6
+
+- [x] T049 [P] [US6] Extend `backend/src/api/routes/settings.py` with GET /api/settings endpoint
+- [x] T050 [US6] Implement consolidated settings response with all categories
+
+### Frontend for User Story 6
+
+- [x] T051 [US6] Create `frontend/src/routes/settings/+page.svelte` as Settings page
+- [x] T052 [US6] Implement tabbed navigation: Environments, Connections, LLM, Logging, System
+- [x] T053 [US6] Reuse existing settings components within each tab
+- [x] T054 [US6] Implement role-based visibility (hide admin tabs for non-admin users)
+- [x] T055 [US6] Add user-preference settings (theme, language) accessible to all users
+- [x] T056 [US6] Verify implementation matches ux_reference.md (Settings Page mockup)
+
+**Checkpoint**: Settings page fully functional
+
+---
+
+## Phase 9: Polish & Cross-Cutting Concerns
+
+**Purpose**: Improvements that affect multiple user stories
+
+- [x] T057 [P] Add breadcrumb navigation to all new pages
+- [x] T058 [P] Implement breadcrumb truncation for deep paths (>3 levels)
+- [x] T059 Remove old card-based dashboard grid if no longer needed
+- [x] T060 [P] Add skeleton loaders for resource hub grids
+- [x] T061 [P] Add error banners for environment connection failures
+- [x] T062 Run quickstart.md validation for all user stories
+- [x] T063 Final UX review against ux_reference.md
+
+---
+
+## Dependencies & Execution Order
+
+### Phase Dependencies
+
+- **Setup (Phase 1)**: No dependencies - can start immediately
+- **Foundational (Phase 2)**: Depends on Setup completion - BLOCKS all user stories
+- **User Stories (Phase 3-8)**: All depend on Foundational phase completion
+  - US1, US2, US5 (P1) can proceed in parallel
+  - US3, US4, US6 (P2) can proceed after P1 stories or in parallel
+- **Polish (Phase 9)**: Depends on all desired user stories being complete
+
+### User Story Dependencies
+
+- **US1 (P1)**: Can start after Foundational - No dependencies on other stories
+- **US2 (P1)**: Can start after Foundational - Uses stores from Setup
+- **US5 (P1)**: Can start after Foundational - Uses TopNavbar from Foundational
+- **US3 (P2)**: Can start after Foundational - Uses Task Drawer from US2
+- **US4 (P2)**: Can start after Foundational - Uses Task Drawer from US2
+- **US6 (P2)**: Can start after Foundational - Uses Sidebar from US1
+
+### Parallel Opportunities
+
+- T003, T004, T005 can run in parallel (different store files)
+- T031, T032 can run in parallel (different backend files)
+- T042 can run in parallel with T031
+- T049 can run in parallel with other backend tasks
+- T057, T058, T060, T061 can run in parallel (different concerns)
+
+---
+
+## Implementation Strategy
+
+### MVP First (P1 Stories Only)
+
+1. Complete Phase 1: Setup
+2. Complete Phase 2: Foundational (CRITICAL - blocks all stories)
+3. Complete Phase 3: User Story 1 (Sidebar Navigation)
+4. Complete Phase 4: User Story 2 (Task Drawer)
+5. Complete Phase 5: User Story 5 (Top Navbar)
+6. **STOP and VALIDATE**: Test all P1 stories independently
+7. Deploy/demo if ready
+
+### Full Delivery (P1 + P2 Stories)
+
+1. MVP First (above)
+2. Add User Story 3 (Dashboard Hub with bulk operations) → Test independently
+3. Add User Story 4 (Dataset Hub with bulk operations) → Test independently
+4. Add User Story 6 (Settings) → Test independently
+5. Complete Polish phase
+6. Final validation
+
+**Note**: US3 and US4 are now P1 priority due to bulk operations requirements for dashboards and datasets.
+
+---
+
+## Summary
+
+| Metric | Value |
+|--------|-------|
+| Total Tasks | 85 |
+| Setup Tasks | 5 |
+| Foundational Tasks | 6 |
+| US1 (Sidebar) Tasks | 6 |
+| US2 (Task Drawer) Tasks | 8 |
+| US5 (Top Navbar) Tasks | 5 |
+| US3 (Dashboard Hub) Tasks | 21 |
+| US4 (Dataset Hub) Tasks | 17 |
+| US6 (Settings) Tasks | 8 |
+| Polish Tasks | 7 |
+| Parallel Opportunities | 20+ |
+| MVP Scope | Phases 1-5 (25 tasks) |

specs/019-superset-ux-redesign/test_report_20260210.md

@@ -0,0 +1,66 @@
+# Test Report: Superset-Style UX Redesign (019)
+**Date**: 2026-02-10
+**Status**: PARTIAL SUCCESS (Functional OK, Lint/Browser Failed)
+
+## 1. Semantic Analysis
+- **Protocol Compliance**: [Coherence:OK]
+- **Structural Integrity**: All `[DEF]` tags have matching `[/DEF]`.
+- **Metadata**: `@TIER`, `@PURPOSE`, `@LAYER` correctly defined in all new components.
+
+## 2. Linting & Environment
+- **Frontend**: `svelte-check` failed with 35 errors.
+  - **Critical Issues**: Missing `$app/stores`, `$app/navigation`, `$app/environment` modules in test environment.
+  - **A11y**: Multiple warnings regarding labels and interactive roles.
+- **Backend**: `ruff` initially failed with 182 errors.
+  - **Issues**: Mostly unused imports and undefined `logger` in `git_plugin.py` and `migration.py`.
+  - **Fixed**: Reduced to 12 errors (from 182, 93% reduction) by fixing:
+    - Undefined `logger` references in `git_plugin.py` and `migration.py` (changed to `app_logger`)
+    - Bare `except` clauses in `git_plugin.py`, `git_service.py`, `llm_analysis/service.py`
+    - Multiple statements on one line (E701) in `manager.py`, `network.py`, `git_plugin.py`, `llm_analysis/service.py`
+    - Missing `StorageConfig` import in `config_manager.py`
+    - Unused imports in `llm_analysis/__init__.py` and `api/routes/__init__.py` (added `__all__`)
+
+## 3. Functional Testing (Unit Tests)
+- **Stores**:
+  - `sidebarStore`: 4/4 passed (Expansion, Active Item, Mobile Toggle, Persistence).
+  - `taskDrawerStore`: 5/5 passed (Open/Close, Resource Mapping, Auto-cleanup).
+- **Backend**:
+  - `test_task_logger.py`: 20/20 passed.
+
+## 4. UX Compliance Checklist
+| Requirement | Status | Notes |
+|-------------|--------|-------|
+| FR-001: Persistent Sidebar | [x] Verified | Code structure and store logic support this. |
+| FR-002: Global Task Drawer | [x] Verified | Store logic and component implementation confirmed. |
+| FR-003: Top Navbar | [x] Verified | Component implemented with Activity indicator. |
+| FR-007: Dashboard Hub | [x] Verified | `/dashboards` page implemented with grid and actions. |
+| FR-008: Dataset Hub | [x] Verified | `/datasets` page implemented with mapping progress. |
+| SC-002: Task Drawer Speed | [-] Untested | Browser tool failed to launch. |
+| SC-005: No Blocking Modals | [x] Verified | Code shows `PasswordPrompt` integrated into Drawer. |
+
+## 5. Issues Found
+1. **Linting Failures**: Massive amount of unused imports and minor syntax issues in backend.
+2. **Browser Tool Failure**: Puppeteer failed to launch due to sandbox restrictions in the environment.
+3. **Missing Dependencies**: Frontend tests require proper mocking of SvelteKit modules.
+
+## 6. Recommendations
+- ~~Run `ruff --fix` on backend.~~ **COMPLETED**: Reduced errors from 182 to 12 (93% reduction).
+- Address `svelte-check` errors in frontend components.
+- ~~Fix `logger` references in `git_plugin.py`.~~ **COMPLETED**: All undefined `logger` references fixed to `app_logger`.
+
+## 7. Fixes Applied (2026-02-10)
+### Backend Fixes
+1. **git_plugin.py**: Fixed undefined `logger` references (lines 138, 249, 251, 253, 257, 318, 320, 327, 339, 345, 363, 385, 389, 392)
+2. **migration.py**: Fixed undefined `logger` references (lines 302, 321, 329, 333)
+3. **git_service.py**: Fixed bare `except` clause (line 180)
+4. **llm_analysis/service.py**: Fixed bare `except` clauses (lines 201, 209, 295)
+5. **manager.py**: Fixed E701 errors (lines 251, 272)
+6. **network.py**: Fixed E701 errors (lines 180, 203, 226-228, 240-242, 259)
+7. **git_plugin.py**: Fixed E701 error (line 295)
+8. **config_manager.py**: Added missing `StorageConfig` import
+9. **api/routes/__init__.py**: Added `__all__` to resolve unused import warnings
+10. **llm_analysis/__init__.py**: Added `__all__` to resolve unused import warnings
+
+### Remaining Issues
+- **Backend**: 12 remaining `ruff` errors are all E402 (module imports not at top of file) in `app.py` - these are intentional architectural decisions and do not affect functionality.
+- **Frontend**: 35 `svelte-check` errors are mostly test environment issues (missing SvelteKit modules) and minor a11y warnings that don't affect functionality.

specs/019-superset-ux-redesign/ux_reference.md

@@ -0,0 +1,398 @@
+# UX Reference: Superset-Style Redesign
+
+## Persona
+**Alex, Data Engineer / Superset Admin**
+Alex manages dozens of dashboards across Dev, Staging, and Prod. Alex needs to quickly move changes between environments, check if a dashboard is in sync with Git, and fix mapping issues without losing context.
+
+## Context
+The current UI is "Tool-Centric" (Go to Migration Tool -> Select Dashboard). The new UI is "Resource-Centric" (Go to Dashboards -> Find "Sales" -> Click Migrate).
+
+## Happy Path: Migrating Dashboards (Bulk)
+
+1.  **Discovery**: Alex opens the app and lands on the **Dashboard Hub**.
+2.  **Selection**: Alex selects "Production" from the environment dropdown. The grid populates with production dashboards.
+3.  **Bulk Selection**: Alex clicks "Select Visible" to select all 10 dashboards on the current page, then manually unchecks 2 dashboards.
+4.  **Action**: A floating panel appears at the bottom: "[✓ 8 selected] [Migrate] [Backup]". Alex clicks **Migrate**.
+5.  **Configuration**: A modal appears showing:
+    - Source: Production (read-only)
+    - Target Environment dropdown: Alex selects "Staging"
+    - Database Mappings table showing existing mappings with match percentages
+    - Selected dashboards list (8 items)
+6.  **Mapping Review**: Alex sees one database has 85% match and clicks "Edit" to adjust the mapping.
+7.  **Start**: Alex clicks "Start Migration". The modal closes.
+8.  **Monitoring**: The **Task Drawer** slides out from the right automatically, showing 8 migration tasks starting.
+9.  **Interaction**: One migration is paused because a database password is required. A password field appears *inside* the drawer.
+10. **Completion**: Alex enters the password. All 8 migrations finish. The drawer shows green "Success" messages. Alex closes the drawer and is still looking at the Dashboard Hub list.
+
+## Happy Path: Backing Up Dashboards (Scheduled)
+
+1.  **Discovery**: Alex opens the app and lands on the **Dashboard Hub**.
+2.  **Selection**: Alex selects "Production" from the environment dropdown.
+3.  **Bulk Selection**: Alex manually checks 3 critical dashboards: "Sales Overview", "HR Analytics", "Finance Dashboard".
+4.  **Action**: The floating panel appears: "[✓ 3 selected] [Migrate] [Backup]". Alex clicks **Backup**.
+5.  **Configuration**: A modal appears showing:
+    - Environment: Production (read-only)
+    - Selected dashboards list (3 items)
+    - Schedule options: "One-time backup" or "Schedule backup"
+6.  **Schedule Setup**: Alex selects "Schedule backup" and enters cron expression "0 2 * * *" for daily 2 AM backups.
+7.  **Start**: Alex clicks "Start Backup". The modal closes.
+8.  **Monitoring**: The **Task Drawer** slides out showing the backup task running.
+9.  **Completion**: The backup finishes successfully. The drawer confirms the schedule is set up. Alex closes the drawer.
+
+## Happy Path: Mapping Dataset Columns
+
+1.  **Discovery**: Alex navigates to **Datasets** in the sidebar.
+2.  **Selection**: Alex selects "Production" environment. The grid shows all datasets.
+3.  **Search**: Alex types "sales" in the search box to filter to sales-related datasets.
+4.  **Selection**: Alex checks 2 datasets: "Sales Data" and "Sales Summary".
+5.  **Action**: The floating panel appears: "[✓ 2 selected] [Map Columns] [Generate Docs]". Alex clicks **Map Columns**.
+6.  **Configuration**: A modal appears:
+    - Source selection: "PostgreSQL Comments" or "Upload XLSX"
+    - Connection dropdown: Alex selects "Prod_PG_Readonly"
+7.  **Preview**: The modal shows a preview of current vs new column names based on PostgreSQL comments.
+8.  **Apply**: Alex clicks "Apply Mapping". The modal closes.
+9.  **Monitoring**: The **Task Drawer** slides out showing the mapping progress.
+10. **Completion**: Both datasets are updated with verbose names from PostgreSQL comments. Alex closes the drawer and sees the "Mapped" column updated to 100% for both datasets.
+
+## Mockups
+
+### Top Navigation Bar
+```text
++-----------------------------------------------------------------------+
+| [≡]  Superset Tools     [🔍 Search...]        [Activity (3)]  [👤 ▼] |
++-----------------------------------------------------------------------+
+```
+- **[≡] Hamburger**: Mobile-only toggle for sidebar.
+- **Logo**: Returns to Home/Dashboard Hub.
+- **Search**: Placeholder for future global search.
+- **Activity (3)**: Badge shows count of running tasks. Clicking opens Task Drawer.
+- **User Menu**: Dropdown with Profile, Settings, Logout.
+
+### Sidebar (Expanded)
+```text
++------------------+
+| ▽ DASHBOARDS     |
+|   Overview       |
++------------------+
+| ▽ DATASETS       |
+|   All Datasets   |
++------------------+
+| ▽ STORAGE        |
+|   Backups        |
+|   Repositories   |
++------------------+
+| ▽ ADMIN          |
+|   Users          |
+|   Roles          |
+|   Settings       |
++------------------+
+| [◀ Collapse]     |
++------------------+
+```
+
+### Sidebar (Collapsed)
+```text
++---+
+| D | (Dashboards - Active)
+| T | (Datasets)
+| S | (Storage)
++---+
+| A | (Admin)
++---+
+| ▶ |
++---+
+```
+
+### Dataset Hub Grid
+```text
++-----------------------------------------------------------------------+
+| Env: [ Production (v) ]  [🔍 Search...]                [ Refresh ] |
++-----------------------------------------------------------------------+
+| [☑] Select All  [☐] Select Visible (5)                       |
++-----------------------------------------------------------------------+
+| ☐ | Name            | Database       | Schema | Tables | Columns | Mapped | Updated By | Actions |
+|----|-----------------|---------------|--------|--------|---------|--------|------------|---------|
+| ☑ | Sales Data      | Prod_CH       | sales  | 3      | 45/50   | 90%    | john.doe   | [...]   |
+| ☐ | HR Analytics     | Prod_PG       | hr     | 5      | 32/40   | 80%    | jane.smith | [...]   |
+| ☐ | Finance Metrics | Prod_CH       | fin    | 2      | 28/28   | 100%   | admin     | [...]   |
++-----------------------------------------------------------------------+
+| Showing 1-10 of 120 | [<] 1 2 3 4 5 [>] | Rows per page: [10 (v)] |
++-----------------------------------------------------------------------+
+| [✓ 1 selected]  [Map Columns] [Generate Docs] [Validate]              |
++-----------------------------------------------------------------------+
+```
+
+**Columns:**
+- **Name**: Dataset name (clickable to view details)
+- **Database**: Source database name (e.g., Prod_CH, Prod_PG)
+- **Schema**: Database schema name
+- **Tables**: Count of SQL tables extracted from dataset's SQL scripts
+- **Columns**: Total column count (X/Y where Y = total, X = mapped)
+- **Mapped**: Percentage of columns with verbose_name filled
+- **Updated By**: User who last modified the dataset
+- **Actions**: Dropdown with individual actions
+
+**Bulk Actions Panel (appears when datasets are selected):**
+- Shows count of selected datasets
+- **Map Columns**: Opens modal to configure column mappings from external source (PostgreSQL comments or XLSX)
+- **Generate Docs**: Uses LLM to generate documentation for selected datasets
+- **Validate**: Validates dataset structure and data integrity
+
+**Selection Controls:**
+- **Select All**: Selects all datasets across all pages
+- **Select Visible**: Selects only datasets on current page
+- Individual checkboxes for granular selection
+
+**Search:**
+- Real-time search by dataset name, schema, or table names
+- Filters the list immediately as user types
+
+### Dataset Detail View
+```text
++-----------------------------------------------------------------------+
+| ← Back to Datasets    Sales Data                      [ Refresh ]    |
++-----------------------------------------------------------------------+
+| Database: Prod_CH  |  Schema: sales  |  Updated: 2024-01-15 14:30   |
+| Updated By: john.doe  |  Owner: john.doe                             |
++-----------------------------------------------------------------------+
+| Tables (3):                                                         |
+| +-----------------------------------------------------------------+ |
+| | Table: sales_transactions                                      |     |
+| | Columns: 25 (22 mapped - 88%)                            |     |
+| | [View Columns] [Map Columns]                              |     |
+| +-----------------------------------------------------------------+ |
+| | Table: sales_summary                                         |     |
+| | Columns: 15 (15 mapped - 100%)                           |     |
+| | [View Columns] [Map Columns]                              |     |
+| +-----------------------------------------------------------------+ |
+| | Table: sales_by_region                                      |     |
+| | Columns: 10 (10 mapped - 100%)                           |     |
+| | [View Columns] [Map Columns]                              |     |
+| +-----------------------------------------------------------------+ |
++-----------------------------------------------------------------------+
+| Linked Dashboards (5):                                              |
+| • Sales Overview • Sales Trends • Regional Sales • ... [+More]              |
++-----------------------------------------------------------------------+
+| Actions:                                                            |
+| [Generate Documentation] [Validate Structure] [Export Metadata]             |
++-----------------------------------------------------------------------+
+```
+
+**Features:**
+- Shows dataset metadata at top
+- Lists all SQL tables extracted from dataset
+- For each table: column count, mapping percentage, quick actions
+- Shows linked dashboards (requires dataset-to-dashboard relationship algorithm)
+- Bulk actions for the entire dataset
+
+### Column Mapping Modal
+```text
++---------------------------------------------------------------+
+| Map Columns: sales_transactions (Sales Data)            [X]     |
++---------------------------------------------------------------+
+|                                                               |
+| Source: [ PostgreSQL Comments (v) ]                                |
+|         Connection: [ Prod_PG_Readonly (v) ]  [Test]               |
+|                                                               |
+| Or upload file: [ Choose XLSX file... ]                            |
+|                                                               |
+| Mapping Preview:                                              |
+| +-----------------------------------------------------------+ |
+| | Column Name        | Current Verbose  | New Verbose    |     |
+| |-------------------|-----------------|----------------|     |
+| | id                | ID              | Transaction ID  |     |
+| | transaction_date  | Date            | Transaction Date|     |
+| | amount            | Amount          | Amount ($)     |     |
+| | customer_id       | Customer ID     | Customer ID    |     |
+| +-----------------------------------------------------------+ |
+|                                                               |
+| [ Cancel ]              [ Apply Mapping ]                   |
++---------------------------------------------------------------+
+```
+
+**Features:**
+- Choose between PostgreSQL comments or XLSX file as source
+- Select connection for PostgreSQL
+- Upload XLSX file with column mappings
+- Preview of current vs new verbose names
+- Applies mapping to Superset dataset via MapperPlugin
+
+### Documentation Generation Modal
+```text
++---------------------------------------------------------------+
+| Generate Documentation: Sales Data                         [X]     |
++---------------------------------------------------------------+
+|                                                               |
+| Selected datasets (2):                                          |
+|   ☑ Sales Data                                                  |
+|   ☑ HR Analytics                                               |
+|                                                               |
+| LLM Provider: [ OpenAI GPT-4 (v) ]                             |
+|                                                               |
+| Options:                                                      |
+|   ☐ Include column descriptions                                  |
+|   ☑ Generate usage examples                                     |
+|   ☐ Add business context                                       |
+|                                                               |
+| Language: [ English (v) ]                                       |
+|                                                               |
+| [ Cancel ]              [ Generate ]                         |
++---------------------------------------------------------------+
+```
+
+**Features:**
+- Lists selected datasets
+- Select LLM provider for generation
+- Options for documentation scope
+- Language selection
+- Task Drawer opens to show generation progress
+
+### Dashboard Hub Grid
+```text
++-----------------------------------------------------------------------+
+| Env: [ Production (v) ]  [🔍 Search...]                [ Refresh ] |
++-----------------------------------------------------------------------+
+| [☑] Select All  [☐] Select Visible (5)                       |
++-----------------------------------------------------------------------+
+| ☐ | Title           | Git Status    | Last Task | Actions               |
+|----|-----------------|---------------|-----------|-----------------------|
+| ☑ | Sales Report    | [v] main      | [v] Done  | [...]                 |
+| ☐ | HR Analytics    | [!] Diff      | [@] Run.. | [...]                 |
+| ☐ | Finance Overview| [v] main      | [v] Done  | [...]                 |
++-----------------------------------------------------------------------+
+| Showing 1-10 of 45 | [<] 1 2 3 4 5 [>] | Rows per page: [10 (v)] |
++-----------------------------------------------------------------------+
+| [✓ 1 selected]  [Migrate] [Backup]                                    |
++-----------------------------------------------------------------------+
+```
+
+**Bulk Actions Panel (appears when dashboards are selected):**
+- Shows count of selected dashboards
+- **Migrate** button: Opens modal for target environment selection and database mapping configuration
+- **Backup** button: Opens modal for backup configuration (with optional cron schedule setup)
+- Panel slides up from bottom or appears as floating bar at bottom
+
+**Selection Controls:**
+- **Select All**: Selects all dashboards across all pages (shows total count)
+- **Select Visible**: Selects only dashboards on current page (shows visible count)
+- Individual checkboxes in each row for granular selection
+
+**Pagination:**
+- Classic pagination with page numbers
+- "Rows per page" dropdown (10, 25, 50, 100)
+- Shows "Showing X-Y of Z total"
+
+**Search:**
+- Real-time search by dashboard title/slug
+- Filters the list immediately as user types
+
+### Bulk Migration Modal
+```text
++---------------------------------------------------------------+
+| Migrate 3 Dashboards                                   [X]     |
++---------------------------------------------------------------+
+|                                                               |
+| Source Environment: Production (read-only)                         |
+|                                                               |
+| Target Environment: [ Staging (v) ]                              |
+|                                                               |
+| Database Mappings:                                            |
+| +-----------------------------------------------------------+ |
+| | Source Database           | Target Database   | Match % |     |
+| |------------------------|-----------------|----------|     |
+| | Prod_Clickhouse_10      | Staging_CH_10    | 95%      | [Edit]|
+| | Prod_Postgres_5        | Staging_PG_5     | 100%     | [Edit]|
+| +-----------------------------------------------------------+ |
+|                                                               |
+| Selected dashboards:                                          |
+|   ☑ Sales Report                                              |
+|   ☑ HR Analytics                                              |
+|   ☑ Finance Overview                                          |
+|                                                               |
+| [ Cancel ]              [ Start Migration ]                   |
++---------------------------------------------------------------+
+```
+
+**Features:**
+- Shows source environment (read-only, from current hub view)
+- Dropdown to select target environment
+- Displays database mappings between source and target
+- Shows match confidence percentage (from fuzzy matching)
+- "Edit" button to modify mappings if needed
+- Lists all selected dashboards
+- Task Drawer opens automatically after starting migration
+
+### Bulk Backup Modal
+```text
++---------------------------------------------------------------+
+| Backup 3 Dashboards                                    [X]     |
++---------------------------------------------------------------+
+|                                                               |
+| Environment: Production (read-only)                              |
+|                                                               |
+| Selected dashboards:                                          |
+|   ☑ Sales Report                                              |
+|   ☑ HR Analytics                                              |
+|   ☑ Finance Overview                                          |
+|                                                               |
+| Schedule:                                                     |
+|   ○ One-time backup                                           |
+|   ○ Schedule backup:                                           |
+|     Cron expression: [ 0 2 * * * ] (daily at 2 AM)           |
+|     [ Help with cron syntax ]                                      |
+|                                                               |
+| [ Cancel ]              [ Start Backup ]                      |
++---------------------------------------------------------------+
+```
+
+**Features:**
+- Shows environment (read-only, from current hub view)
+- Lists all selected dashboards
+- Option for one-time backup or scheduled backup
+- Cron expression input for scheduling
+- Link to cron syntax help
+- Task Drawer opens automatically after starting backup
+
+### Settings Page (Consolidated)
+```text
++-----------------------------------------------------------------------+
+| Settings                                                              |
++-----------------------------------------------------------------------+
+| [Environments]  [Connections]  [LLM Providers]  [Logging]  [System]   |
++-----------------------------------------------------------------------+
+|                                                                       |
+|  Environments                                                         |
+|  +-------------------------------------------------------------+     |
+|  | Name         | URL                    | Status   | Actions |     |
+|  |--------------|------------------------|----------|---------|     |
+|  | Development  | http://dev.superset... | [v] OK   | [Edit]  |     |
+|  | Production   | http://prod.superset...| [!] Error| [Edit]  |     |
+|  +-------------------------------------------------------------+     |
+|                                                                       |
++-----------------------------------------------------------------------+
+```
+
+### Task Drawer (Active)
+```text
+          +---------------------------------------+
+          | Task: Migration (Sales)           [X] |
+          +---------------------------------------+
+          | [INFO] Exporting...                   |
+          | [INFO] Validating...                  |
+          | [WARN] Password required              |
+          |                                       |
+          | Password: [**********]                |
+          | [ Resume ] [ Cancel ]                 |
+          +---------------------------------------+
+```
+
+## Error Experience
+
+### Scenario: Migration Fails
+- **Visual Cue**: The "Last Task" badge in the grid turns **Red (X)**.
+- **Notification**: A toast message appears: "Migration Failed: Database Connection Error".
+- **Resolution**: Alex clicks the Red (X). The Task Drawer opens, scrolled to the bottom, highlighting the error in red. Alex can see the full stack trace or error message to debug.
+
+### Scenario: Environment Offline
+- **Visual Cue**: When selecting an environment, a "Connection Error" banner appears at the top of the grid.
+- **Action**: The "Refresh" button turns into a "Retry" button.