diff --git a/.kilocode/rules/specify-rules.md b/.kilocode/rules/specify-rules.md
index d24793b..117d923 100644
--- a/.kilocode/rules/specify-rules.md
+++ b/.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 -->
diff --git a/docs/design/resource_centric_layout.md b/docs/design/resource_centric_layout.md
new file mode 100644
index 0000000..b9247a2
--- /dev/null
+++ b/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.
\ No newline at end of file
diff --git a/specs/019-superset-ux-redesign/checklists/requirements.md b/specs/019-superset-ux-redesign/checklists/requirements.md
new file mode 100644
index 0000000..5692176
--- /dev/null
+++ b/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.
diff --git a/specs/019-superset-ux-redesign/contracts/api.md b/specs/019-superset-ux-redesign/contracts/api.md
new file mode 100644
index 0000000..55a2b3a
--- /dev/null
+++ b/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]
+```
diff --git a/specs/019-superset-ux-redesign/data-model.md b/specs/019-superset-ux-redesign/data-model.md
new file mode 100644
index 0000000..9b035fb
--- /dev/null
+++ b/specs/019-superset-ux-redesign/data-model.md
@@ -0,0 +1,122 @@
+# 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)
+```
diff --git a/specs/019-superset-ux-redesign/plan.md b/specs/019-superset-ux-redesign/plan.md
new file mode 100644
index 0000000..1d1327f
--- /dev/null
+++ b/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 |
diff --git a/specs/019-superset-ux-redesign/quickstart.md b/specs/019-superset-ux-redesign/quickstart.md
new file mode 100644
index 0000000..56e9db3
--- /dev/null
+++ b/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` |
diff --git a/specs/019-superset-ux-redesign/research.md b/specs/019-superset-ux-redesign/research.md
new file mode 100644
index 0000000..2ef7a6c
--- /dev/null
+++ b/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
diff --git a/specs/019-superset-ux-redesign/spec.md b/specs/019-superset-ux-redesign/spec.md
new file mode 100644
index 0000000..9b1861b
--- /dev/null
+++ b/specs/019-superset-ux-redesign/spec.md
@@ -0,0 +1,175 @@
+# 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**: Draft  
+**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. **Given** the application has loaded, **When** I view the left sidebar, **Then** I see primary resource links: DASHBOARDS, DATASETS, STORAGE.
+2. **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. **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. **Given** a task is running, **When** I look at the navbar, **Then** I see an "Activity" indicator with the count of active tasks.
+2. **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. **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: P2)
+
+As a user, I want a central hub for dashboards where I can see their Git status and trigger actions like Migrate or Backup from a single row, so I don't have to switch between different tools.
+
+**Why this priority**: Consolidates multiple existing tools (Migration, Git, Backup) into a single resource-focused view.
+
+**Independent Test**: Navigate to `/dashboards`, select an environment, and verify the grid displays Title, Slug, Git Status, and Last Task status.
+
+**Acceptance Scenarios**:
+
+1. **Given** I am in the Dashboard Hub, **When** I click the "Actions" menu for a dashboard, **Then** I see options for Migrate, Backup, and Git Operations.
+2. **Given** a dashboard is linked to Git, **When** I view the grid, **Then** I see its current branch and sync status (OK/Diff).
+3. **Given** I click "Migrate", **When** the deployment modal opens, **Then** it only asks for the target environment, keeping the source context from the hub.
+
+---
+
+### User Story 4 - Dataset Hub & Semantic Mapping (Priority: P2)
+
+As a user, I want a dedicated hub for datasets where I can manage documentation and field mappings, so I can ensure data consistency across environments.
+
+**Why this priority**: Moves dataset management from a secondary tool to a primary resource.
+
+**Independent Test**: Navigate to `/datasets` and verify the list of tables/schemas is displayed with mapping progress.
+
+**Acceptance Scenarios**:
+
+1. **Given** I am in the Dataset Hub, **When** I view a dataset row, **Then** I see the "Mapped Fields" count (e.g., 15/20).
+2. **Given** I click "Map Columns" in the actions menu, **Then** the mapping interface opens (replacing the old standalone Mapper page).
+
+---
+
+### 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. **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. **Given** I click the User avatar, **When** the dropdown opens, **Then** I see options for: Profile, Settings, Logout.
+3. **Given** there are running tasks, **When** I view the Activity indicator, **Then** I see a badge with the count of active tasks.
+4. **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. **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. **Given** I am on the Settings page, **When** I click "Environments", **Then** I see the environment management interface (add/edit/delete Superset instances).
+3. **Given** I am on the Settings page, **When** I click "Connections", **Then** I see database connection configurations.
+4. **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
+
+- **Deep Navigation**: Breadcrumbs should handle long paths by truncating middle segments with an ellipsis.
+- **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.
+- **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.
+- **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**
+- **FR-001**: System MUST implement a persistent left sidebar with resource-centric categories (DASHBOARDS, DATASETS, STORAGE, ADMIN).
+- **FR-002**: System MUST implement a Global Task Drawer that slides out from the right, capable of displaying log streams and interactive forms.
+- **FR-003**: System MUST provide a top navigation bar containing: Logo/Brand, Global Search (placeholder), Activity indicator, User menu.
+- **FR-004**: System MUST display breadcrumb navigation at the top of the content area for all pages.
+- **FR-005**: System MUST persist sidebar collapse/expand state in local storage.
+- **FR-006**: System MUST highlight the active resource/category in the sidebar.
+
+**Resource Hubs**
+- **FR-007**: System MUST implement a Dashboard Hub (`/dashboards`) that aggregates Migration, Git, and Backup actions for individual dashboards.
+- **FR-008**: System MUST implement a Dataset Hub (`/datasets`) for managing table metadata and field mappings.
+- **FR-009**: System MUST support a "Source Environment" selector at the top of resource hubs to fetch metadata from different Superset instances.
+
+**Task Management**
+- **FR-010**: System MUST provide a Navbar "Activity" indicator showing the number of active background tasks.
+- **FR-011**: System MUST render interactive task prompts (like `PasswordPrompt`) inside the Task Drawer instead of global modals.
+- **FR-012**: System MUST allow users to close the Task Drawer while a task continues running in the background.
+
+**Settings & Configuration**
+- **FR-013**: System MUST consolidate all admin settings into a single "Settings" section with categories: Environments, Connections, LLM Providers, Logging, System.
+- **FR-014**: System MUST hide admin-only settings categories from non-admin users.
+- **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 trigger a migration for a specific dashboard in exactly 2 clicks from the Dashboard Hub.
+- **SC-002**: Task Drawer opens and starts streaming logs within 200ms of a status badge click.
+- **SC-003**: 100% of existing "Tool" functionality (Migration, Git, Mapper) is accessible via the new Resource Hubs.
+- **SC-004**: Users can monitor a running task while simultaneously browsing other resources in the grid.
+- **SC-005**: Zero "blocking" modals used for task-related inputs; all moved to the Task Drawer.
+
+## 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.
+
+## 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.
+
+## 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).
diff --git a/specs/019-superset-ux-redesign/tasks.md b/specs/019-superset-ux-redesign/tasks.md
new file mode 100644
index 0000000..bf08904
--- /dev/null
+++ b/specs/019-superset-ux-redesign/tasks.md
@@ -0,0 +1,265 @@
+# 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
+
+- [ ] T001 Create `frontend/src/lib/components/layout/` directory for shared layout components
+- [ ] T002 Create `frontend/src/lib/components/hubs/` directory for resource hub pages
+- [ ] T003 [P] Create `frontend/src/lib/stores/sidebar.js` with persistentStore pattern for sidebar state
+- [ ] T004 [P] Create `frontend/src/lib/stores/taskDrawer.js` with resourceTaskMap store
+- [ ] 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
+
+- [ ] T006 Create `frontend/src/lib/components/layout/Sidebar.svelte` with categories: DASHBOARDS, DATASETS, STORAGE, ADMIN
+- [ ] T007 Create `frontend/src/lib/components/layout/TopNavbar.svelte` with Logo, Search placeholder, Activity indicator, User menu
+- [ ] T008 Create `frontend/src/lib/components/layout/Breadcrumbs.svelte` for page hierarchy navigation
+- [ ] T009 Update `frontend/src/routes/+layout.svelte` to include Sidebar, TopNavbar, and main content area
+- [ ] T010 Add i18n keys for navigation labels in `frontend/src/lib/i18n/translations/en.json`
+- [ ] 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
+
+- [ ] T012 [US1] Implement sidebar collapse/expand toggle with animation in `frontend/src/lib/components/layout/Sidebar.svelte`
+- [ ] T013 [US1] Add mobile hamburger menu toggle in `frontend/src/lib/components/layout/TopNavbar.svelte`
+- [ ] T014 [US1] Implement active item highlighting in sidebar using `sidebarStore`
+- [ ] T015 [US1] Add localStorage persistence for sidebar state (collapsed/expanded)
+- [ ] T016 [US1] Implement responsive sidebar (overlay mode on mobile < 768px)
+- [ ] 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
+
+- [ ] T018 [US2] Create `frontend/src/lib/components/layout/TaskDrawer.svelte` as slide-out panel from right
+- [ ] T019 [US2] Integrate existing `TaskLogViewer` component inside Task Drawer
+- [ ] T020 [US2] Implement Activity indicator badge in TopNavbar showing `activeCount` from store
+- [ ] T021 [US2] Connect Task Drawer to WebSocket for real-time log streaming
+- [ ] T022 [US2] Implement interactive area in drawer for `PasswordPrompt` and other inputs
+- [ ] T023 [US2] Add close button that allows task to continue running in background
+- [ ] T024 [US2] Implement drawer open trigger from Activity indicator click
+- [ ] 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
+
+- [ ] T026 [US5] Implement Logo/Brand link in TopNavbar that returns to Home
+- [ ] T027 [US5] Add Global Search placeholder (non-functional, for future) in TopNavbar
+- [ ] T028 [US5] Implement User menu dropdown with Profile, Settings, Logout options
+- [ ] T029 [US5] Connect User menu Logout to authentication logout flow
+- [ ] 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: P2)
+
+**Goal**: Central hub for dashboards with Git status and action triggers
+
+**Independent Test**: Navigate to `/dashboards`, select environment, verify grid displays correctly
+
+### Backend for User Story 3
+
+- [ ] T031 [P] [US3] Create `backend/src/api/routes/dashboards.py` with GET /api/dashboards endpoint
+- [ ] T032 [P] [US3] Create `backend/src/services/resource_service.py` for shared resource fetching logic
+- [ ] T033 [US3] Implement dashboard list fetching with Git status and last task status
+
+### Frontend for User Story 3
+
+- [ ] T034 [US3] Create `frontend/src/routes/dashboards/+page.svelte` as Dashboard Hub
+- [ ] T035 [US3] Implement environment selector dropdown at top of Dashboard Hub
+- [ ] T036 [US3] Create dashboard grid with columns: Title, Slug, Git Status, Last Task, Actions
+- [ ] T037 [US3] Implement Actions menu with Migrate, Backup, Git Operations options
+- [ ] T038 [US3] Connect Actions menu to existing plugin triggers (Migration, Backup, Git)
+- [ ] T039 [US3] Implement status badge click to open Task Drawer with correct task
+- [ ] T040 [US3] Add empty state when no environments configured or no dashboards found
+- [ ] T041 [US3] Verify implementation matches ux_reference.md (Dashboard Hub Grid mockup)
+
+**Checkpoint**: Dashboard Hub fully functional
+
+---
+
+## Phase 7: User Story 4 - Dataset Hub & Semantic Mapping (Priority: P2)
+
+**Goal**: Dedicated hub for datasets with mapping progress
+
+**Independent Test**: Navigate to `/datasets` and verify list with mapping progress
+
+### Backend for User Story 4
+
+- [ ] T042 [P] [US4] Create `backend/src/api/routes/datasets.py` with GET /api/datasets endpoint
+- [ ] T043 [US4] Implement dataset list fetching with mapped fields count
+
+### Frontend for User Story 4
+
+- [ ] T044 [US4] Create `frontend/src/routes/datasets/+page.svelte` as Dataset Hub
+- [ ] T045 [US4] Implement dataset grid with columns: Table Name, Schema, Mapped Fields, Last Task, Actions
+- [ ] T046 [US4] Implement "Map Columns" action that opens mapping interface
+- [ ] T047 [US4] Add empty state when no datasets found
+- [ ] T048 [US4] Verify implementation matches ux_reference.md
+
+**Checkpoint**: Dataset Hub fully functional
+
+---
+
+## 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
+
+- [ ] T049 [P] [US6] Extend `backend/src/api/routes/settings.py` with GET /api/settings endpoint
+- [ ] T050 [US6] Implement consolidated settings response with all categories
+
+### Frontend for User Story 6
+
+- [ ] T051 [US6] Create `frontend/src/routes/settings/+page.svelte` as Settings page
+- [ ] T052 [US6] Implement tabbed navigation: Environments, Connections, LLM, Logging, System
+- [ ] T053 [US6] Reuse existing settings components within each tab
+- [ ] T054 [US6] Implement role-based visibility (hide admin tabs for non-admin users)
+- [ ] T055 [US6] Add user-preference settings (theme, language) accessible to all users
+- [ ] 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
+
+- [ ] T057 [P] Add breadcrumb navigation to all new pages
+- [ ] T058 [P] Implement breadcrumb truncation for deep paths (>3 levels)
+- [ ] T059 Remove old card-based dashboard grid if no longer needed
+- [ ] T060 [P] Add skeleton loaders for resource hub grids
+- [ ] T061 [P] Add error banners for environment connection failures
+- [ ] T062 Run quickstart.md validation for all user stories
+- [ ] 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
+
+1. MVP First (above)
+2. Add User Story 3 (Dashboard Hub) → Test independently
+3. Add User Story 4 (Dataset Hub) → Test independently
+4. Add User Story 6 (Settings) → Test independently
+5. Complete Polish phase
+6. Final validation
+
+---
+
+## Summary
+
+| Metric | Value |
+|--------|-------|
+| Total Tasks | 63 |
+| Setup Tasks | 5 |
+| Foundational Tasks | 6 |
+| US1 (Sidebar) Tasks | 6 |
+| US2 (Task Drawer) Tasks | 8 |
+| US5 (Top Navbar) Tasks | 5 |
+| US3 (Dashboard Hub) Tasks | 11 |
+| US4 (Dataset Hub) Tasks | 7 |
+| US6 (Settings) Tasks | 8 |
+| Polish Tasks | 7 |
+| Parallel Opportunities | 15+ |
+| MVP Scope | Phases 1-5 (25 tasks) |
diff --git a/specs/019-superset-ux-redesign/ux_reference.md b/specs/019-superset-ux-redesign/ux_reference.md
new file mode 100644
index 0000000..bff3055
--- /dev/null
+++ b/specs/019-superset-ux-redesign/ux_reference.md
@@ -0,0 +1,125 @@
+# 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 a Dashboard
+
+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.  **Status Check**: Alex sees that "Sales Overview" has a "Diff" status in the Git column.
+4.  **Action**: Alex clicks the `[...]` menu on the "Sales Overview" row and selects **Migrate**.
+5.  **Configuration**: A small modal appears asking for the **Target Environment**. Alex selects "Staging" and clicks "Start".
+6.  **Monitoring**: The modal closes. The "Last Task" column for "Sales Overview" changes to a **Spinner**.
+7.  **Contextual Logs**: Alex clicks the Spinner. The **Task Drawer** slides out from the right.
+8.  **Interaction**: The logs show the migration is paused because a database password is required. A password field appears *inside* the drawer.
+9.  **Completion**: Alex enters the password. The migration finishes. The drawer shows a green "Success" message. Alex closes the drawer and is still looking at the Dashboard Hub list.
+
+## 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)
++---+
+| ▶ |
++---+
+```
+
+### Dashboard Hub Grid
+```text
++-----------------------------------------------------------------------+
+| Env: [ Production (v) ]                                   [ Refresh ] |
++-----------------------------------------------------------------------+
+| Title           | Git Status    | Last Task | Actions                 |
+|-----------------|---------------|-----------|-------------------------|
+| Sales Report    | [v] main      | [v] Done  | [ Migrate ] [ Backup ]  |
+| HR Analytics    | [!] Diff      | [@] Run.. | [ Commit ]  [ ... ]     |
++-----------------------------------------------------------------------+
+```
+
+### 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.