feat(assistant): add multi-dialog UX, task-aware llm settings, and i18n cleanup

backend/src/api/routes/__tests__/test_assistant_api.py

@@ -218,6 +218,29 @@ def test_unknown_command_returns_needs_clarification():
 
 
 # [/DEF:test_unknown_command_returns_needs_clarification:Function]
+
+
+# [DEF:test_capabilities_question_returns_successful_help:Function]
+# @PURPOSE: Capability query should return deterministic help response, not clarification.
+# @PRE: User sends natural-language "what can you do" style query.
+# @POST: Response is successful and includes capabilities summary.
+def test_capabilities_question_returns_successful_help():
+    _clear_assistant_state()
+    response = _run_async(
+        assistant_module.send_message(
+            request=assistant_module.AssistantMessageRequest(message="Что ты умеешь?"),
+            current_user=_admin_user(),
+            task_manager=_FakeTaskManager(),
+            config_manager=_FakeConfigManager(),
+            db=_FakeDb(),
+        )
+    )
+    assert response.state == "success"
+    assert "Вот что я могу сделать" in response.text
+    assert "Миграции" in response.text or "Git" in response.text
+
+
+# [/DEF:test_capabilities_question_returns_successful_help:Function]
 # [DEF:test_non_admin_command_returns_denied:Function]
 # @PURPOSE: Non-admin user must receive denied state for privileged command.
 # @PRE: Limited principal executes privileged git branch command.

backend/src/api/routes/assistant.py

@@ -27,6 +27,11 @@ from ...core.config_manager import ConfigManager
 from ...core.database import get_db
 from ...services.git_service import GitService
 from ...services.llm_provider import LLMProviderService
+from ...services.llm_prompt_templates import (
+    is_multimodal_model,
+    normalize_llm_settings,
+    resolve_bound_provider_id,
+)
 from ...core.superset_client import SupersetClient
 from ...plugins.llm_analysis.service import LLMClient
 from ...plugins.llm_analysis.models import LLMProviderType
@@ -449,7 +454,12 @@ def _is_production_env(token: Optional[str], config_manager: ConfigManager) -> b
 # @PURPOSE: Resolve provider token to provider id with active/default fallback.
 # @PRE: db session can load provider list through LLMProviderService.
 # @POST: Returns provider id or None when no providers configured.
-def _resolve_provider_id(provider_token: Optional[str], db: Session) -> Optional[str]:
+def _resolve_provider_id(
+    provider_token: Optional[str],
+    db: Session,
+    config_manager: Optional[ConfigManager] = None,
+    task_key: Optional[str] = None,
+) -> Optional[str]:
     service = LLMProviderService(db)
     providers = service.get_all_providers()
     if not providers:
@@ -461,6 +471,15 @@ def _resolve_provider_id(provider_token: Optional[str], db: Session) -> Optional
             if p.id.lower() == needle or p.name.lower() == needle:
                 return p.id
 
+    if config_manager and task_key:
+        try:
+            llm_settings = config_manager.get_config().settings.llm
+            bound_provider_id = resolve_bound_provider_id(llm_settings, task_key)
+            if bound_provider_id and any(p.id == bound_provider_id for p in providers):
+                return bound_provider_id
+        except Exception:
+            pass
+
     active = next((p for p in providers if p.is_active), None)
     return active.id if active else providers[0].id
 # [/DEF:_resolve_provider_id:Function]
@@ -537,6 +556,27 @@ def _parse_command(message: str, config_manager: ConfigManager) -> Dict[str, Any
     text = message.strip()
     lower = text.lower()
 
+    if any(
+        phrase in lower
+        for phrase in [
+            "что ты умеешь",
+            "что умеешь",
+            "что ты можешь",
+            "help",
+            "помощь",
+            "доступные команды",
+            "какие команды",
+        ]
+    ):
+        return {
+            "domain": "assistant",
+            "operation": "show_capabilities",
+            "entities": {},
+            "confidence": 0.98,
+            "risk_level": "safe",
+            "requires_confirmation": False,
+        }
+
     dashboard_id = _extract_id(lower, [r"(?:дашборд\w*|dashboard)\s*(?:id\s*)?(\d+)"])
     dashboard_ref = _extract_id(
         lower,
@@ -721,10 +761,26 @@ def _build_tool_catalog(current_user: User, config_manager: ConfigManager, db: S
     envs = config_manager.get_environments()
     default_env_id = _get_default_environment_id(config_manager)
     providers = LLMProviderService(db).get_all_providers()
+    llm_settings = {}
+    try:
+        llm_settings = config_manager.get_config().settings.llm
+    except Exception:
+        llm_settings = {}
     active_provider = next((p.id for p in providers if p.is_active), None)
     fallback_provider = active_provider or (providers[0].id if providers else None)
+    validation_provider = resolve_bound_provider_id(llm_settings, "dashboard_validation") or fallback_provider
+    documentation_provider = resolve_bound_provider_id(llm_settings, "documentation") or fallback_provider
 
     candidates: List[Dict[str, Any]] = [
+        {
+            "operation": "show_capabilities",
+            "domain": "assistant",
+            "description": "Show available assistant commands and examples",
+            "required_entities": [],
+            "optional_entities": [],
+            "risk_level": "safe",
+            "requires_confirmation": False,
+        },
         {
             "operation": "get_task_status",
             "domain": "status",
@@ -785,7 +841,7 @@ def _build_tool_catalog(current_user: User, config_manager: ConfigManager, db: S
             "description": "Run LLM dashboard validation",
             "required_entities": ["dashboard_id"],
             "optional_entities": ["dashboard_ref", "environment", "provider"],
-            "defaults": {"environment": default_env_id, "provider": fallback_provider},
+            "defaults": {"environment": default_env_id, "provider": validation_provider},
             "risk_level": "guarded",
             "requires_confirmation": False,
         },
@@ -795,7 +851,7 @@ def _build_tool_catalog(current_user: User, config_manager: ConfigManager, db: S
             "description": "Generate dataset documentation via LLM",
             "required_entities": ["dataset_id"],
             "optional_entities": ["environment", "provider"],
-            "defaults": {"environment": default_env_id, "provider": fallback_provider},
+            "defaults": {"environment": default_env_id, "provider": documentation_provider},
             "risk_level": "guarded",
             "requires_confirmation": False,
         },
@@ -867,9 +923,13 @@ async def _plan_intent_with_llm(
     if not tools:
         return None
 
+    llm_settings = normalize_llm_settings(config_manager.get_config().settings.llm)
+    planner_provider_token = llm_settings.get("assistant_planner_provider")
+    planner_model_override = llm_settings.get("assistant_planner_model")
     llm_service = LLMProviderService(db)
     providers = llm_service.get_all_providers()
-    provider = next((p for p in providers if p.is_active), None)
+    provider_id = _resolve_provider_id(planner_provider_token, db)
+    provider = next((p for p in providers if p.id == provider_id), None)
     if not provider:
         return None
     api_key = llm_service.get_decrypted_api_key(provider.id)
@@ -880,7 +940,7 @@ async def _plan_intent_with_llm(
         provider_type=LLMProviderType(provider.provider_type),
         api_key=api_key,
         base_url=provider.base_url,
-        default_model=provider.default_model,
+        default_model=planner_model_override or provider.default_model,
     )
 
     system_instruction = (
@@ -983,6 +1043,29 @@ async def _dispatch_intent(
     operation = intent.get("operation")
     entities = intent.get("entities", {})
 
+    if operation == "show_capabilities":
+        tools_catalog = _build_tool_catalog(current_user, config_manager, db)
+        labels = {
+            "create_branch": "Git: создание ветки",
+            "commit_changes": "Git: коммит",
+            "deploy_dashboard": "Git: деплой дашборда",
+            "execute_migration": "Миграции: запуск переноса",
+            "run_backup": "Бэкапы: запуск резервного копирования",
+            "run_llm_validation": "LLM: валидация дашборда",
+            "run_llm_documentation": "LLM: генерация документации",
+            "get_task_status": "Статус: проверка задачи",
+        }
+        available = [labels[t["operation"]] for t in tools_catalog if t["operation"] in labels]
+        if not available:
+            return "Сейчас нет доступных для вас операций ассистента.", None, []
+        commands = "\n".join(f"- {item}" for item in available)
+        text = (
+            "Вот что я могу сделать для вас:\n"
+            f"{commands}\n\n"
+            "Пример: `запусти миграцию с dev на prod для дашборда 42`."
+        )
+        return text, None, []
+
     if operation == "get_task_status":
         _check_any_permission(current_user, [("tasks", "READ")])
         task_id = entities.get("task_id")
@@ -1111,12 +1194,27 @@ async def _dispatch_intent(
                 env_id,
                 config_manager,
             )
-        provider_id = _resolve_provider_id(entities.get("provider"), db)
+        provider_id = _resolve_provider_id(
+            entities.get("provider"),
+            db,
+            config_manager=config_manager,
+            task_key="dashboard_validation",
+        )
         if not dashboard_id or not env_id or not provider_id:
             raise HTTPException(
                 status_code=422,
                 detail="Missing dashboard_id/environment/provider. Укажите ID/slug дашборда или окружение.",
             )
+        provider = LLMProviderService(db).get_provider(provider_id)
+        provider_model = provider.default_model if provider else ""
+        if not is_multimodal_model(provider_model):
+            raise HTTPException(
+                status_code=422,
+                detail=(
+                    "Selected provider model is not multimodal for dashboard validation. "
+                    "Выберите мультимодальную модель (например, gpt-4o)."
+                ),
+            )
 
         task = await task_manager.create_task(
             plugin_id="llm_dashboard_validation",
@@ -1140,7 +1238,12 @@ async def _dispatch_intent(
         _check_any_permission(current_user, [("plugin:llm_documentation", "EXECUTE")])
         dataset_id = entities.get("dataset_id")
         env_id = _resolve_env_id(entities.get("environment"), config_manager)
-        provider_id = _resolve_provider_id(entities.get("provider"), db)
+        provider_id = _resolve_provider_id(
+            entities.get("provider"),
+            db,
+            config_manager=config_manager,
+            task_key="documentation",
+        )
         if not dataset_id or not env_id or not provider_id:
             raise HTTPException(status_code=400, detail="Missing dataset_id/environment/provider")
 
@@ -1301,6 +1404,7 @@ async def send_message(
             is_clarification_error = exc.status_code in (400, 422) and (
                 detail_text.lower().startswith("missing")
                 or "укажите" in detail_text.lower()
+                or "выберите" in detail_text.lower()
             )
             if exc.status_code == status.HTTP_403_FORBIDDEN:
                 state = "denied"

backend/src/api/routes/git.py

@@ -25,7 +25,11 @@ from src.api.routes.git_schemas import (
 )
 from src.services.git_service import GitService
 from src.core.logger import logger, belief_scope
-from ...services.llm_prompt_templates import DEFAULT_LLM_PROMPTS, normalize_llm_settings
+from ...services.llm_prompt_templates import (
+    DEFAULT_LLM_PROMPTS,
+    normalize_llm_settings,
+    resolve_bound_provider_id,
+)
 
 router = APIRouter(tags=["git"])
 git_service = GitService()
@@ -431,7 +435,11 @@ async def generate_commit_message(
             
             llm_service = LLMProviderService(db)
             providers = llm_service.get_all_providers()
-            provider = next((p for p in providers if p.is_active), None)
+            llm_settings = normalize_llm_settings(config_manager.get_config().settings.llm)
+            bound_provider_id = resolve_bound_provider_id(llm_settings, "git_commit")
+            provider = next((p for p in providers if p.id == bound_provider_id), None)
+            if not provider:
+                provider = next((p for p in providers if p.is_active), None)
             
             if not provider:
                 raise HTTPException(status_code=400, detail="No active LLM provider found")
@@ -447,7 +455,6 @@ async def generate_commit_message(
             # 4. Generate Message
             from ...plugins.git.llm_extension import GitLLMExtension
             extension = GitLLMExtension(client)
-            llm_settings = normalize_llm_settings(config_manager.get_config().settings.llm)
             git_prompt = llm_settings["prompts"].get(
                 "git_commit_prompt",
                 DEFAULT_LLM_PROMPTS["git_commit_prompt"],

backend/src/api/routes/tasks.py

@@ -11,7 +11,13 @@ from ...core.logger import belief_scope
 
 from ...core.task_manager import TaskManager, Task, TaskStatus, LogEntry
 from ...core.task_manager.models import LogFilter, LogStats
-from ...dependencies import get_task_manager, has_permission, get_current_user
+from ...dependencies import get_task_manager, has_permission, get_current_user, get_config_manager
+from ...core.config_manager import ConfigManager
+from ...services.llm_prompt_templates import (
+    is_multimodal_model,
+    normalize_llm_settings,
+    resolve_bound_provider_id,
+)
 
 router = APIRouter()
 
@@ -42,7 +48,8 @@ class ResumeTaskRequest(BaseModel):
 async def create_task(
     request: CreateTaskRequest,
     task_manager: TaskManager = Depends(get_task_manager),
-    current_user = Depends(get_current_user)
+    current_user = Depends(get_current_user),
+    config_manager: ConfigManager = Depends(get_config_manager),
 ):
     # Dynamic permission check based on plugin_id
     has_permission(f"plugin:{request.plugin_id}", "EXECUTE")(current_user)
@@ -51,18 +58,35 @@ async def create_task(
     """
     with belief_scope("create_task"):
         try:
-            # Special handling for validation task to include provider config
-            if request.plugin_id == "llm_dashboard_validation":
+            # Special handling for LLM tasks to resolve provider config by task binding.
+            if request.plugin_id in {"llm_dashboard_validation", "llm_documentation"}:
                 from ...core.database import SessionLocal
                 from ...services.llm_provider import LLMProviderService
                 db = SessionLocal()
                 try:
                     llm_service = LLMProviderService(db)
                     provider_id = request.params.get("provider_id")
+                    if not provider_id:
+                        llm_settings = normalize_llm_settings(config_manager.get_config().settings.llm)
+                        binding_key = "dashboard_validation" if request.plugin_id == "llm_dashboard_validation" else "documentation"
+                        provider_id = resolve_bound_provider_id(llm_settings, binding_key)
+                        if provider_id:
+                            request.params["provider_id"] = provider_id
+                    if not provider_id:
+                        providers = llm_service.get_all_providers()
+                        active_provider = next((p for p in providers if p.is_active), None)
+                        if active_provider:
+                            provider_id = active_provider.id
+                            request.params["provider_id"] = provider_id
+
                     if provider_id:
                         db_provider = llm_service.get_provider(provider_id)
                         if not db_provider:
                             raise ValueError(f"LLM Provider {provider_id} not found")
+                        if request.plugin_id == "llm_dashboard_validation" and not is_multimodal_model(db_provider.default_model):
+                            raise ValueError(
+                                "Selected provider model is not multimodal for dashboard validation"
+                            )
                 finally:
                     db.close()
 

backend/src/core/config_models.py

@@ -9,7 +9,11 @@
 from pydantic import BaseModel, Field
 from typing import List, Optional
 from ..models.storage import StorageConfig
-from ..services.llm_prompt_templates import DEFAULT_LLM_PROMPTS
+from ..services.llm_prompt_templates import (
+    DEFAULT_LLM_ASSISTANT_SETTINGS,
+    DEFAULT_LLM_PROMPTS,
+    DEFAULT_LLM_PROVIDER_BINDINGS,
+)
 
 # [DEF:Schedule:DataClass]
 # @PURPOSE: Represents a backup schedule configuration.
@@ -55,6 +59,8 @@ class GlobalSettings(BaseModel):
             "providers": [],
             "default_provider": "",
             "prompts": dict(DEFAULT_LLM_PROMPTS),
+            "provider_bindings": dict(DEFAULT_LLM_PROVIDER_BINDINGS),
+            **dict(DEFAULT_LLM_ASSISTANT_SETTINGS),
         }
     )
     

backend/src/plugins/llm_analysis/plugin.py

@@ -25,6 +25,7 @@ from ...models.llm import ValidationRecord
 from ...core.task_manager.context import TaskContext
 from ...services.llm_prompt_templates import (
     DEFAULT_LLM_PROMPTS,
+    is_multimodal_model,
     normalize_llm_settings,
     render_prompt,
 )
@@ -108,6 +109,10 @@ class DashboardValidationPlugin(PluginBase):
                 llm_log.debug(f"  Base URL: {db_provider.base_url}")
                 llm_log.debug(f"  Default Model: {db_provider.default_model}")
                 llm_log.debug(f"  Is Active: {db_provider.is_active}")
+                if not is_multimodal_model(db_provider.default_model):
+                    raise ValueError(
+                        "Dashboard validation requires a multimodal model (image input support)."
+                    )
                 
                 api_key = llm_service.get_decrypted_api_key(provider_id)
                 llm_log.debug(f"API Key decrypted (first 8 chars): {api_key[:8] if api_key and len(api_key) > 8 else 'EMPTY_OR_NONE'}...")

backend/src/services/__tests__/test_llm_prompt_templates.py

@@ -7,8 +7,12 @@
 # @INVARIANT: All required prompt keys remain available after normalization.
 
 from src.services.llm_prompt_templates import (
+    DEFAULT_LLM_ASSISTANT_SETTINGS,
+    DEFAULT_LLM_PROVIDER_BINDINGS,
     DEFAULT_LLM_PROMPTS,
+    is_multimodal_model,
     normalize_llm_settings,
+    resolve_bound_provider_id,
     render_prompt,
 )
 
@@ -22,10 +26,15 @@ def test_normalize_llm_settings_adds_default_prompts():
     normalized = normalize_llm_settings({"default_provider": "x"})
 
     assert "prompts" in normalized
+    assert "provider_bindings" in normalized
     assert normalized["default_provider"] == "x"
     for key in DEFAULT_LLM_PROMPTS:
         assert key in normalized["prompts"]
         assert isinstance(normalized["prompts"][key], str)
+    for key in DEFAULT_LLM_PROVIDER_BINDINGS:
+        assert key in normalized["provider_bindings"]
+    for key in DEFAULT_LLM_ASSISTANT_SETTINGS:
+        assert key in normalized
 # [/DEF:test_normalize_llm_settings_adds_default_prompts:Function]
 
 
@@ -59,4 +68,42 @@ def test_render_prompt_replaces_known_placeholders():
 # [/DEF:test_render_prompt_replaces_known_placeholders:Function]
 
 
+# [DEF:test_is_multimodal_model_detects_known_vision_models:Function]
+# @TIER: STANDARD
+# @PURPOSE: Ensure multimodal model detection recognizes common vision-capable model names.
+def test_is_multimodal_model_detects_known_vision_models():
+    assert is_multimodal_model("gpt-4o") is True
+    assert is_multimodal_model("claude-3-5-sonnet") is True
+    assert is_multimodal_model("text-only-model") is False
+# [/DEF:test_is_multimodal_model_detects_known_vision_models:Function]
+
+
+# [DEF:test_resolve_bound_provider_id_prefers_binding_then_default:Function]
+# @TIER: STANDARD
+# @PURPOSE: Verify provider binding resolution priority.
+def test_resolve_bound_provider_id_prefers_binding_then_default():
+    settings = {
+        "default_provider": "default-1",
+        "provider_bindings": {"dashboard_validation": "vision-1"},
+    }
+    assert resolve_bound_provider_id(settings, "dashboard_validation") == "vision-1"
+    assert resolve_bound_provider_id(settings, "documentation") == "default-1"
+# [/DEF:test_resolve_bound_provider_id_prefers_binding_then_default:Function]
+
+
+# [DEF:test_normalize_llm_settings_keeps_assistant_planner_settings:Function]
+# @TIER: STANDARD
+# @PURPOSE: Ensure assistant planner provider/model fields are preserved and normalized.
+def test_normalize_llm_settings_keeps_assistant_planner_settings():
+    normalized = normalize_llm_settings(
+        {
+            "assistant_planner_provider": "provider-a",
+            "assistant_planner_model": "gpt-4.1-mini",
+        }
+    )
+    assert normalized["assistant_planner_provider"] == "provider-a"
+    assert normalized["assistant_planner_model"] == "gpt-4.1-mini"
+# [/DEF:test_normalize_llm_settings_keeps_assistant_planner_settings:Function]
+
+
 # [/DEF:backend.src.services.__tests__.test_llm_prompt_templates:Module]

backend/src/services/llm_prompt_templates.py

@@ -61,23 +61,109 @@ DEFAULT_LLM_PROMPTS: Dict[str, str] = {
 # [/DEF:DEFAULT_LLM_PROMPTS:Constant]
 
 
+# [DEF:DEFAULT_LLM_PROVIDER_BINDINGS:Constant]
+# @TIER: STANDARD
+# @PURPOSE: Default provider binding per task domain.
+DEFAULT_LLM_PROVIDER_BINDINGS: Dict[str, str] = {
+    "dashboard_validation": "",
+    "documentation": "",
+    "git_commit": "",
+}
+# [/DEF:DEFAULT_LLM_PROVIDER_BINDINGS:Constant]
+
+
+# [DEF:DEFAULT_LLM_ASSISTANT_SETTINGS:Constant]
+# @TIER: STANDARD
+# @PURPOSE: Default planner settings for assistant chat intent model/provider resolution.
+DEFAULT_LLM_ASSISTANT_SETTINGS: Dict[str, str] = {
+    "assistant_planner_provider": "",
+    "assistant_planner_model": "",
+}
+# [/DEF:DEFAULT_LLM_ASSISTANT_SETTINGS:Constant]
+
+
 # [DEF:normalize_llm_settings:Function]
 # @TIER: STANDARD
 # @PURPOSE: Ensure llm settings contain stable schema with prompts section and default templates.
 # @PRE: llm_settings is dictionary-like value or None.
 # @POST: Returned dict contains prompts with all required template keys.
 def normalize_llm_settings(llm_settings: Any) -> Dict[str, Any]:
-    normalized: Dict[str, Any] = {"providers": [], "default_provider": "", "prompts": {}}
+    normalized: Dict[str, Any] = {
+        "providers": [],
+        "default_provider": "",
+        "prompts": {},
+        "provider_bindings": {},
+        **DEFAULT_LLM_ASSISTANT_SETTINGS,
+    }
     if isinstance(llm_settings, dict):
-        normalized.update({k: v for k, v in llm_settings.items() if k in ("providers", "default_provider", "prompts")})
+        normalized.update(
+            {
+                k: v
+                for k, v in llm_settings.items()
+                if k
+                in (
+                    "providers",
+                    "default_provider",
+                    "prompts",
+                    "provider_bindings",
+                    "assistant_planner_provider",
+                    "assistant_planner_model",
+                )
+            }
+        )
     prompts = normalized.get("prompts") if isinstance(normalized.get("prompts"), dict) else {}
     merged_prompts = deepcopy(DEFAULT_LLM_PROMPTS)
     merged_prompts.update({k: v for k, v in prompts.items() if isinstance(v, str) and v.strip()})
     normalized["prompts"] = merged_prompts
+    bindings = normalized.get("provider_bindings") if isinstance(normalized.get("provider_bindings"), dict) else {}
+    merged_bindings = deepcopy(DEFAULT_LLM_PROVIDER_BINDINGS)
+    merged_bindings.update({k: v for k, v in bindings.items() if isinstance(v, str)})
+    normalized["provider_bindings"] = merged_bindings
+    for key, default_value in DEFAULT_LLM_ASSISTANT_SETTINGS.items():
+        value = normalized.get(key, default_value)
+        normalized[key] = value.strip() if isinstance(value, str) else default_value
     return normalized
 # [/DEF:normalize_llm_settings:Function]
 
 
+# [DEF:is_multimodal_model:Function]
+# @TIER: STANDARD
+# @PURPOSE: Heuristically determine whether model supports image input required for dashboard validation.
+# @PRE: model_name may be empty or mixed-case.
+# @POST: Returns True when model likely supports multimodal input.
+def is_multimodal_model(model_name: str) -> bool:
+    token = (model_name or "").strip().lower()
+    if not token:
+        return False
+    multimodal_markers = (
+        "gpt-4o",
+        "gpt-4.1",
+        "vision",
+        "vl",
+        "gemini",
+        "claude-3",
+        "claude-sonnet-4",
+    )
+    return any(marker in token for marker in multimodal_markers)
+# [/DEF:is_multimodal_model:Function]
+
+
+# [DEF:resolve_bound_provider_id:Function]
+# @TIER: STANDARD
+# @PURPOSE: Resolve provider id configured for a task binding with fallback to default provider.
+# @PRE: llm_settings is normalized or raw dict from config.
+# @POST: Returns configured provider id or fallback id/empty string when not defined.
+def resolve_bound_provider_id(llm_settings: Any, task_key: str) -> str:
+    normalized = normalize_llm_settings(llm_settings)
+    bindings = normalized.get("provider_bindings", {})
+    bound = bindings.get(task_key)
+    if isinstance(bound, str) and bound.strip():
+        return bound.strip()
+    default_provider = normalized.get("default_provider", "")
+    return default_provider.strip() if isinstance(default_provider, str) else ""
+# [/DEF:resolve_bound_provider_id:Function]
+
+
 # [DEF:render_prompt:Function]
 # @TIER: STANDARD
 # @PURPOSE: Render prompt template using deterministic placeholder replacement with graceful fallback.

frontend/src/components/EnvSelector.svelte

@@ -11,6 +11,7 @@
 <script lang="ts">
   // [SECTION: IMPORTS]
   import { onMount, createEventDispatcher } from 'svelte';
+  import { t } from '../lib/i18n';
   // [/SECTION]
 
   // [SECTION: PROPS]
@@ -48,7 +49,7 @@
     value={selectedId}
     on:change={handleSelect}
   >
-    <option value="" disabled>-- Choose an environment --</option>
+    <option value="" disabled>{$t.common?.choose_environment || "-- Choose an environment --"}</option>
     {#each environments as env}
       <option value={env.id}>{env.name} ({env.url})</option>
     {/each}

frontend/src/components/git/CommitModal.svelte

@@ -16,6 +16,7 @@
     import { gitService } from "../../services/gitService";
     import { addToast as toast } from "../../lib/toasts.js";
     import { api } from "../../lib/api";
+    import { t } from "../../lib/i18n";
     // [/SECTION]
 
     // [SECTION: PROPS]
@@ -49,10 +50,10 @@
                 `/git/repositories/${dashboardId}/generate-message`,
             );
             message = data.message;
-            toast("Commit message generated", "success");
+            toast($t.git?.commit_message_generated || "Commit message generated", "success");
         } catch (e) {
             console.error(`[CommitModal][Coherence:Failed] ${e.message}`);
-            toast(e.message || "Failed to generate message", "error");
+            toast(e.message || ($t.git?.commit_message_failed || "Failed to generate message"), "error");
         } finally {
             generatingMessage = false;
         }
@@ -93,7 +94,7 @@
             if (!diff) diff = "";
         } catch (e) {
             console.error(`[CommitModal][Coherence:Failed] ${e.message}`);
-            toast("Failed to load changes", "error");
+            toast($t.git?.load_changes_failed || "Failed to load changes", "error");
         } finally {
             loading = false;
         }
@@ -114,7 +115,7 @@
         committing = true;
         try {
             await gitService.commit(dashboardId, message, []);
-            toast("Changes committed successfully", "success");
+            toast($t.git?.commit_success || "Changes committed successfully", "success");
             dispatch("commit");
             show = false;
             message = "";
@@ -141,7 +142,7 @@
         <div
             class="bg-white p-6 rounded-lg shadow-xl w-full max-w-4xl max-h-[90vh] flex flex-col"
         >
-            <h2 class="text-xl font-bold mb-4">Commit Changes</h2>
+            <h2 class="text-xl font-bold mb-4">{$t.git?.commit || "Commit Changes"}</h2>
 
             <div class="flex flex-col md:flex-row gap-4 flex-1 overflow-hidden">
                 <!-- Left: Message and Files -->
@@ -150,7 +151,7 @@
                         <div class="flex justify-between items-center mb-1">
                             <label
                                 class="block text-sm font-medium text-gray-700"
-                                >Commit Message</label
+                                >{$t.git?.commit_message || "Commit Message"}</label
                             >
                             <button
                                 onclick={handleGenerateMessage}
@@ -158,16 +159,16 @@
                                 class="text-xs text-blue-600 hover:text-blue-800 disabled:opacity-50 flex items-center"
                             >
                                 {#if generatingMessage}
-                                    <span class="animate-spin mr-1">↻</span> Generating...
+                                    <span class="animate-spin mr-1">↻</span> {$t.mapper?.generating || "Generating..."}
                                 {:else}
-                                    <span class="mr-1">✨</span> Generate with AI
+                                    <span class="mr-1">✨</span> {$t.git?.generate_with_ai || "Generate with AI"}
                                 {/if}
                             </button>
                         </div>
                         <textarea
                             bind:value={message}
                             class="w-full border rounded p-2 h-32 focus:ring-2 focus:ring-blue-500 outline-none resize-none"
-                            placeholder="Describe your changes..."
+                            placeholder={$t.git?.describe_changes || "Describe your changes..."}
                         ></textarea>
                     </div>
 
@@ -176,7 +177,7 @@
                             <h3
                                 class="text-sm font-bold text-gray-500 uppercase mb-2"
                             >
-                                Changed Files
+                                {$t.git?.changed_files || "Changed Files"}
                             </h3>
                             <ul class="text-xs space-y-1">
                                 {#each status.staged_files as file}
@@ -218,14 +219,14 @@
                     <div
                         class="bg-gray-200 px-3 py-1 text-xs font-bold text-gray-600 border-b"
                     >
-                        Changes Preview
+                        {$t.git?.changes_preview || "Changes Preview"}
                     </div>
                     <div class="flex-1 overflow-auto p-2">
                         {#if loading}
                             <div
                                 class="flex items-center justify-center h-full text-gray-500"
                             >
-                                Loading diff...
+                                {$t.git?.loading_diff || "Loading diff..."}
                             </div>
                         {:else if diff}
                             <pre
@@ -234,7 +235,7 @@
                             <div
                                 class="flex items-center justify-center h-full text-gray-500 italic"
                             >
-                                No changes detected
+                                {$t.git?.no_changes || "No changes detected"}
                             </div>
                         {/if}
                     </div>
@@ -246,7 +247,7 @@
                     onclick={() => (show = false)}
                     class="px-4 py-2 text-gray-600 hover:bg-gray-100 rounded"
                 >
-                    Cancel
+                    {$t.common?.cancel || "Cancel"}
                 </button>
                 <button
                     onclick={handleCommit}
@@ -257,7 +258,7 @@
                             status?.staged_files?.length === 0)}
                     class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50"
                 >
-                    {committing ? "Committing..." : "Commit"}
+                    {committing ? ($t.git?.committing || "Committing...") : ($t.git?.commit || "Commit")}
                 </button>
             </div>
         </div>

frontend/src/components/git/DeploymentModal.svelte

@@ -14,6 +14,7 @@
     import { onMount, createEventDispatcher } from "svelte";
     import { gitService } from "../../services/gitService";
     import { addToast as toast } from "../../lib/toasts.js";
+    import { t } from "../../lib/i18n";
     // [/SECTION]
 
     // [SECTION: PROPS]
@@ -55,7 +56,7 @@
             );
         } catch (e) {
             console.error(`[DeploymentModal][Coherence:Failed] ${e.message}`);
-            toast("Failed to load environments", "error");
+            toast($t.migration?.loading_envs_failed || "Failed to load environments", "error");
         } finally {
             loading = false;
         }
@@ -76,7 +77,7 @@
         try {
             const result = await gitService.deploy(dashboardId, selectedEnv);
             toast(
-                result.message || "Deployment triggered successfully",
+                result.message || ($t.git?.deploy_success || "Deployment triggered successfully"),
                 "success",
             );
             dispatch("deploy");
@@ -98,26 +99,26 @@
         class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50"
     >
         <div class="bg-white p-6 rounded-lg shadow-xl w-96">
-            <h2 class="text-xl font-bold mb-4">Deploy Dashboard</h2>
+            <h2 class="text-xl font-bold mb-4">{$t.git?.deploy || "Deploy Dashboard"}</h2>
 
             {#if loading}
-                <p class="text-gray-500">Loading environments...</p>
+                <p class="text-gray-500">{$t.migration?.loading_envs || "Loading environments..."}</p>
             {:else if environments.length === 0}
                 <p class="text-red-500 mb-4">
-                    No deployment environments configured.
+                    {$t.git?.no_deploy_envs || "No deployment environments configured."}
                 </p>
                 <div class="flex justify-end">
                     <button
                         onclick={() => (show = false)}
                         class="px-4 py-2 bg-gray-200 text-gray-800 rounded hover:bg-gray-300"
                     >
-                        Close
+                        {$t.common?.close || "Close"}
                     </button>
                 </div>
             {:else}
                 <div class="mb-6">
                     <label class="block text-sm font-medium text-gray-700 mb-2"
-                        >Select Target Environment</label
+                        >{$t.migration?.target_env || "Select Target Environment"}</label
                     >
                     <select
                         bind:value={selectedEnv}
@@ -136,7 +137,7 @@
                         onclick={() => (show = false)}
                         class="px-4 py-2 text-gray-600 hover:bg-gray-100 rounded"
                     >
-                        Cancel
+                        {$t.common?.cancel || "Cancel"}
                     </button>
                     <button
                         onclick={handleDeploy}
@@ -164,9 +165,9 @@
                                     d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
                                 ></path>
                             </svg>
-                            Deploying...
+                            {$t.git?.deploying || "Deploying..."}
                         {:else}
-                            Deploy
+                            {$t.git?.deploy || "Deploy"}
                         {/if}
                     </button>
                 </div>

frontend/src/components/git/GitManager.svelte

@@ -82,13 +82,13 @@
      */
     async function handleInit() {
         if (!selectedConfigId || !remoteUrl) {
-            toast('Please select a Git server and provide remote URL', 'error');
+            toast($t.git?.init_validation_error || 'Please select a Git server and provide remote URL', 'error');
             return;
         }
         loading = true;
         try {
             await gitService.initRepository(dashboardId, selectedConfigId, remoteUrl);
-            toast('Repository initialized successfully', 'success');
+            toast($t.git?.init_success || 'Repository initialized successfully', 'success');
             initialized = true;
         } catch (e) {
             toast(e.message, 'error');
@@ -110,7 +110,7 @@
             // Try to get selected environment from localStorage (set by EnvSelector)
             const sourceEnvId = localStorage.getItem('selected_env_id');
             await gitService.sync(dashboardId, sourceEnvId);
-            toast('Dashboard state synced to Git', 'success');
+            toast($t.git?.sync_success || 'Dashboard state synced to Git', 'success');
         } catch (e) {
             toast(e.message, 'error');
         } finally {
@@ -129,7 +129,7 @@
         loading = true;
         try {
             await gitService.push(dashboardId);
-            toast('Changes pushed to remote', 'success');
+            toast($t.git?.push_success || 'Changes pushed to remote', 'success');
         } catch (e) {
             toast(e.message, 'error');
         } finally {
@@ -148,7 +148,7 @@
         loading = true;
         try {
             await gitService.pull(dashboardId);
-            toast('Changes pulled from remote', 'success');
+            toast($t.git?.pull_success || 'Changes pulled from remote', 'success');
         } catch (e) {
             toast(e.message, 'error');
         } finally {
@@ -164,8 +164,8 @@
 {#if show}
     <div class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
         <div class="bg-white p-6 rounded-lg shadow-2xl w-full max-w-4xl max-h-[90vh] overflow-y-auto">
-            <PageHeader title="{$t.git.management}: {dashboardTitle}">
-                <div slot="subtitle" class="text-sm text-gray-500">ID: {dashboardId}</div>
+            <PageHeader title={`${$t.git?.management || "Git Management"}: ${dashboardTitle}`}>
+                <div slot="subtitle" class="text-sm text-gray-500">{$t.common?.id || "ID"}: {dashboardId}</div>
                 <div slot="actions">
                     <button onclick={() => show = false} class="text-gray-400 hover:text-gray-600 transition-colors">
                         <svg xmlns="http://www.w3.org/2000/svg" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
@@ -193,13 +193,13 @@
                                 options={configs.map(c => ({ value: c.id, label: `${c.name} (${c.provider})` }))}
                             />
                             {#if configs.length === 0}
-                                <p class="text-xs text-red-500 -mt-4">No Git servers configured. Go to Settings -> Git to add one.</p>
+                                <p class="text-xs text-red-500 -mt-4">{$t.git?.no_servers_configured || "No Git servers configured. Go to Settings -> Git to add one."}</p>
                             {/if}
                             
                             <Input
                                 label={$t.git.remote_url}
                                 bind:value={remoteUrl}
-                                placeholder="https://github.com/org/repo.git"
+                                placeholder={$t.git?.remote_url_placeholder || "https://github.com/org/repo.git"}
                             />
 
                             <Button

frontend/src/components/llm/ProviderConfig.svelte

@@ -29,6 +29,20 @@
   let testStatus = { type: "", message: "" };
   let isTesting = false;
 
+  function isMultimodalModel(modelName) {
+    const token = (modelName || "").toLowerCase();
+    if (!token) return false;
+    return (
+      token.includes("gpt-4o") ||
+      token.includes("gpt-4.1") ||
+      token.includes("vision") ||
+      token.includes("vl") ||
+      token.includes("gemini") ||
+      token.includes("claude-3") ||
+      token.includes("claude-sonnet-4")
+    );
+  }
+
   function resetForm() {
     formData = {
       name: "",
@@ -295,6 +309,13 @@
             >
               {provider.is_active ? $t.llm.active : "Inactive"}
             </span>
+            <span
+              class={`text-xs px-2 py-0.5 rounded-full ${isMultimodalModel(provider.default_model) ? "bg-sky-100 text-sky-800" : "bg-amber-100 text-amber-800"}`}
+            >
+              {isMultimodalModel(provider.default_model)
+                ? ($t.llm?.multimodal || "Multimodal")
+                : ($t.llm?.text_only || "Text only")}
+            </span>
           </div>
           <div class="text-sm text-gray-500">
             {provider.provider_type} • {provider.default_model}

frontend/src/components/tools/ConnectionForm.svelte

@@ -31,7 +31,7 @@
     // @POST: A new connection is created via the connection service and a success event is dispatched.
     async function handleSubmit() {
         if (!name || !host || !database || !username || !password) {
-            addToast('Please fill in all required fields', 'warning');
+            addToast($t.connections?.required_fields || 'Please fill in all required fields', 'warning');
             return;
         }
 
@@ -40,7 +40,7 @@
             const newConnection = await createConnection({
                 name, type, host, port: Number(port), database, username, password
             });
-            addToast('Connection created successfully', 'success');
+            addToast($t.connections?.created_success || 'Connection created successfully', 'success');
             dispatch('success', newConnection);
             resetForm();
         } catch (e) {
@@ -70,10 +70,10 @@
 <!-- [SECTION: TEMPLATE] -->
 <Card title={$t.connections?.add_new || "Add New Connection"}>
     <form on:submit|preventDefault={handleSubmit} class="space-y-6">
-        <Input label={$t.connections?.name || "Connection Name"} bind:value={name} placeholder="e.g. Production DWH" />
+        <Input label={$t.connections?.name || "Connection Name"} bind:value={name} placeholder={$t.connections?.name_placeholder || "e.g. Production DWH"} />
         
         <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
-            <Input label={$t.connections?.host || "Host"} bind:value={host} placeholder="10.0.0.1" />
+            <Input label={$t.connections?.host || "Host"} bind:value={host} placeholder={$t.connections?.host_placeholder || "10.0.0.1"} />
             <Input label={$t.connections?.port || "Port"} type="number" bind:value={port} />
         </div>
 

frontend/src/components/tools/ConnectionList.svelte

@@ -28,7 +28,7 @@
         try {
             connections = await getConnections();
         } catch (e) {
-            addToast('Failed to fetch connections', 'error');
+            addToast($t.connections?.fetch_failed || 'Failed to fetch connections', 'error');
         } finally {
             isLoading = false;
         }
@@ -40,11 +40,11 @@
     // @PRE: id is provided and user confirms deletion.
     // @POST: Connection is deleted from backend and list is reloaded.
     async function handleDelete(id) {
-        if (!confirm('Are you sure you want to delete this connection?')) return;
+        if (!confirm($t.connections?.delete_confirm || 'Are you sure you want to delete this connection?')) return;
         
         try {
             await deleteConnection(id);
-            addToast('Connection deleted', 'success');
+            addToast($t.connections?.deleted_success || 'Connection deleted', 'success');
             await fetchConnections();
         } catch (e) {
             addToast(e.message, 'error');

frontend/src/components/tools/DebugTool.svelte

@@ -12,6 +12,7 @@
     import { runTask, getTaskStatus } from '../../services/toolsService.js';
     import { selectedTask } from '../../lib/stores.js';
     import { addToast } from '../../lib/toasts.js';
+    import { t } from '../../lib/i18n';
     // [/SECTION]
 
     let envs = [];
@@ -35,7 +36,7 @@
         try {
             envs = await api.getEnvironmentsList();
         } catch (e) {
-            addToast('Failed to fetch environments', 'error');
+            addToast($t.debug?.fetch_env_failed || 'Failed to fetch environments', 'error');
         }
     }
     // [/DEF:fetchEnvironments:Function]
@@ -54,7 +55,7 @@
             let params = { action };
             if (action === 'test-db-api') {
                 if (!sourceEnv || !targetEnv) {
-                    addToast('Source and Target environments are required', 'warning');
+                    addToast($t.debug?.source_target_required || 'Source and Target environments are required', 'warning');
                     isRunning = false;
                     return;
                 }
@@ -64,7 +65,7 @@
                 params.target_env = tEnv.name;
             } else {
                 if (!selectedEnv || !datasetId) {
-                    addToast('Environment and Dataset ID are required', 'warning');
+                    addToast($t.debug?.env_dataset_required || 'Environment and Dataset ID are required', 'warning');
                     isRunning = false;
                     return;
                 }
@@ -101,11 +102,11 @@
                     clearInterval(pollInterval);
                     isRunning = false;
                     results = task.result;
-                    addToast('Debug task completed', 'success');
+                    addToast($t.debug?.completed || 'Debug task completed', 'success');
                 } else if (task.status === 'FAILED') {
                     clearInterval(pollInterval);
                     isRunning = false;
-                    addToast('Debug task failed', 'error');
+                    addToast($t.debug?.failed || 'Debug task failed', 'error');
                 }
             } catch (e) {
                 clearInterval(pollInterval);
@@ -120,31 +121,31 @@
 
 <div class="space-y-6">
     <div class="bg-white p-6 rounded-lg shadow-sm border border-gray-200">
-        <h3 class="text-lg font-medium text-gray-900 mb-4">System Diagnostics</h3>
+        <h3 class="text-lg font-medium text-gray-900 mb-4">{$t.debug?.title || 'System Diagnostics'}</h3>
         
         <div class="mb-4">
-            <label class="block text-sm font-medium text-gray-700">Debug Action</label>
+            <label class="block text-sm font-medium text-gray-700">{$t.debug?.action || 'Debug Action'}</label>
             <select bind:value={action} class="mt-1 block w-full border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm">
-                <option value="test-db-api">Test Database API (Compare Envs)</option>
-                <option value="get-dataset-structure">Get Dataset Structure (JSON)</option>
+                <option value="test-db-api">{$t.debug?.test_db_api || 'Test Database API (Compare Envs)'}</option>
+                <option value="get-dataset-structure">{$t.debug?.get_dataset_structure || 'Get Dataset Structure (JSON)'}</option>
             </select>
         </div>
 
         {#if action === 'test-db-api'}
             <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                 <div>
-                    <label for="src-env" class="block text-sm font-medium text-gray-700">Source Environment</label>
+                    <label for="src-env" class="block text-sm font-medium text-gray-700">{$t.migration?.source_env || 'Source Environment'}</label>
                     <select id="src-env" bind:value={sourceEnv} class="mt-1 block w-full border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm">
-                        <option value="" disabled>-- Select Source --</option>
+                        <option value="" disabled>{$t.debug?.select_source || '-- Select Source --'}</option>
                         {#each envs as env}
                             <option value={env.id}>{env.name}</option>
                         {/each}
                     </select>
                 </div>
                 <div>
-                    <label for="tgt-env" class="block text-sm font-medium text-gray-700">Target Environment</label>
+                    <label for="tgt-env" class="block text-sm font-medium text-gray-700">{$t.migration?.target_env || 'Target Environment'}</label>
                     <select id="tgt-env" bind:value={targetEnv} class="mt-1 block w-full border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm">
-                        <option value="" disabled>-- Select Target --</option>
+                        <option value="" disabled>{$t.debug?.select_target || '-- Select Target --'}</option>
                         {#each envs as env}
                             <option value={env.id}>{env.name}</option>
                         {/each}
@@ -154,16 +155,16 @@
         {:else}
             <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
                 <div>
-                    <label for="debug-env" class="block text-sm font-medium text-gray-700">Environment</label>
+                    <label for="debug-env" class="block text-sm font-medium text-gray-700">{$t.dashboard?.environment || 'Environment'}</label>
                     <select id="debug-env" bind:value={selectedEnv} class="mt-1 block w-full border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm">
-                        <option value="" disabled>-- Select Environment --</option>
+                        <option value="" disabled>{$t.common?.choose_environment || '-- Select Environment --'}</option>
                         {#each envs as env}
                             <option value={env.id}>{env.name}</option>
                         {/each}
                     </select>
                 </div>
                 <div>
-                    <label for="debug-ds-id" class="block text-sm font-medium text-gray-700">Dataset ID</label>
+                    <label for="debug-ds-id" class="block text-sm font-medium text-gray-700">{$t.mapper?.dataset_id || 'Dataset ID'}</label>
                     <input type="number" id="debug-ds-id" bind:value={datasetId} class="mt-1 block w-full border-gray-300 rounded-md shadow-sm focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm" />
                 </div>
             </div>
@@ -171,7 +172,7 @@
 
         <div class="mt-4 flex justify-end">
             <button on:click={handleRunDebug} disabled={isRunning} class="inline-flex items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md shadow-sm text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500 disabled:opacity-50">
-                {isRunning ? 'Running...' : 'Run Diagnostics'}
+                {isRunning ? ($t.dashboard?.running || 'Running...') : ($t.debug?.run || 'Run Diagnostics')}
             </button>
         </div>
     </div>
@@ -179,7 +180,7 @@
     {#if results}
         <div class="bg-white shadow overflow-hidden sm:rounded-md border border-gray-200">
             <div class="px-4 py-5 sm:px-6 bg-gray-50 border-b border-gray-200">
-                <h3 class="text-lg leading-6 font-medium text-gray-900">Debug Output</h3>
+                <h3 class="text-lg leading-6 font-medium text-gray-900">{$t.debug?.output || 'Debug Output'}</h3>
             </div>
             <div class="p-4">
                 <pre class="text-xs text-gray-600 bg-gray-900 text-green-400 p-4 rounded-md overflow-x-auto h-96">{JSON.stringify(results, null, 2)}</pre>

frontend/src/components/tools/MapperTool.svelte

@@ -106,7 +106,7 @@
             const activeProvider = providers.find(p => p.is_active);
             
             if (!activeProvider) {
-                addToast('No active LLM provider found', 'error');
+                addToast($t.mapper?.errors?.no_active_llm_provider || 'No active LLM provider found', 'error');
                 return;
             }
 
@@ -117,9 +117,9 @@
             });
             
             selectedTask.set(task);
-            addToast('Documentation generation started', 'success');
+            addToast($t.mapper?.success?.docs_started || 'Documentation generation started', 'success');
         } catch (e) {
-            addToast(e.message || 'Failed to start documentation generation', 'error');
+            addToast(e.message || $t.mapper?.errors?.docs_start_failed || 'Failed to start documentation generation', 'error');
         } finally {
             isGeneratingDocs = false;
         }
@@ -130,9 +130,9 @@
         try {
             await api.put(`/mappings/datasets/${datasetId}/metadata`, doc);
             generatedDoc = null;
-            addToast('Documentation applied successfully', 'success');
+            addToast($t.mapper?.success?.docs_applied || 'Documentation applied successfully', 'success');
         } catch (err) {
-            addToast(err.message || 'Failed to apply documentation', 'error');
+            addToast(err.message || $t.mapper?.errors?.docs_apply_failed || 'Failed to apply documentation', 'error');
         }
     }
 
@@ -212,7 +212,7 @@
                         label={$t.mapper.excel_path}
                         type="text"
                         bind:value={excelPath}
-                        placeholder="/path/to/mapping.xlsx"
+                        placeholder={$t.mapper?.excel_placeholder || "/path/to/mapping.xlsx"}
                     />
                 </div>
             {/if}
@@ -224,9 +224,9 @@
                     disabled={isGeneratingDocs || isRunning}
                 >
                     {#if isGeneratingDocs}
-                        <span class="animate-spin mr-1">↻</span> Generating...
+                        <span class="animate-spin mr-1">↻</span> {$t.mapper?.generating || "Generating..."}
                     {:else}
-                        <span class="mr-1">✨</span> Generate Docs
+                        <span class="mr-1">✨</span> {$t.datasets?.generate_docs || "Generate Docs"}
                     {/if}
                 </Button>
                 <Button

frontend/src/lib/components/layout/Breadcrumbs.svelte

@@ -30,7 +30,7 @@
    */
   function getBreadcrumbs(pathname, maxVisible = 3) {
     const segments = pathname.split("/").filter(Boolean);
-    const allItems = [{ label: "Home", path: "/" }];
+    const allItems = [{ label: $t.nav?.home || "Home", path: "/" }];
 
     let currentPath = "";
     segments.forEach((segment, index) => {
@@ -136,7 +136,7 @@
 
 <nav
   class="mx-4 md:mx-6"
-  aria-label="Breadcrumb navigation"
+  aria-label={$t.nav?.breadcrumb_nav || "Breadcrumb navigation"}
 >
   <div class="inline-flex max-w-full items-center gap-1.5 rounded-xl border border-slate-200/80 bg-white/85 px-2 py-1.5 shadow-sm backdrop-blur">
     {#each breadcrumbItems as item, index}

frontend/src/lib/components/layout/Sidebar.svelte

@@ -201,7 +201,7 @@
         <span class="inline-flex h-6 w-6 items-center justify-center rounded-md bg-gradient-to-br from-slate-100 to-slate-200 text-slate-700 ring-1 ring-slate-200">
           <Icon name="layers" size={14} />
         </span>
-        Menu
+        {$t.nav?.menu || "Menu"}
       </span>
     {:else}
       <span class="text-xs text-gray-500">M</span>
@@ -285,7 +285,7 @@
         <span class="mr-2 inline-flex h-6 w-6 items-center justify-center rounded-md bg-slate-100 text-slate-600">
           <Icon name="chevronLeft" size={14} />
         </span>
-        Collapse
+        {$t.nav?.collapse || "Collapse"}
       </button>
     </div>
   {:else}
@@ -293,10 +293,10 @@
       <button
         class="flex items-center justify-center w-full px-4 py-2 text-sm text-gray-600 hover:bg-gray-100 rounded-lg transition-colors"
         on:click={handleToggleClick}
-        aria-label="Expand sidebar"
+        aria-label={$t.nav?.expand_sidebar || "Expand sidebar"}
       >
         <Icon name="chevronRight" size={16} />
-        <span class="ml-2">Expand</span>
+        <span class="ml-2">{$t.nav?.expand || "Expand"}</span>
       </button>
     </div>
   {/if}

frontend/src/lib/components/layout/TaskDrawer.svelte

@@ -201,7 +201,7 @@
     on:keydown={(e) => e.key === 'Escape' && handleClose()}
     role="button"
     tabindex="0"
-    aria-label="Close drawer"
+    aria-label={$t.tasks?.close_drawer || "Close drawer"}
   >
     <!-- Drawer Panel -->
     <div
@@ -209,7 +209,7 @@
       style={`right: ${assistantOffset};`}
       role="dialog"
       aria-modal="true"
-      aria-label="Task drawer"
+      aria-label={$t.tasks?.drawer || "Task drawer"}
     >
       <!-- Header -->
       <div class="flex items-center justify-between border-b border-slate-200 bg-white px-5 py-3.5">
@@ -222,13 +222,13 @@
             <button
               class="flex items-center justify-center p-1.5 rounded-md text-slate-500 bg-transparent border-none cursor-pointer transition-all hover:text-slate-100 hover:bg-slate-800"
               on:click={goBackToList}
-              aria-label="Back to task list"
+              aria-label={$t.tasks?.back_to_list || "Back to task list"}
             >
               <Icon name="back" size={16} strokeWidth={2} />
             </button>
           {/if}
           <h2 class="text-sm font-semibold tracking-tight text-slate-900">
-            {activeTaskId ? ($t.tasks?.details_logs || 'Task Details & Logs') : 'Recent Tasks'}
+            {activeTaskId ? ($t.tasks?.details_logs || 'Task Details & Logs') : ($t.tasks?.recent || 'Recent Tasks')}
           </h2>
           {#if shortTaskId}
             <span class="text-xs font-mono text-slate-500 bg-slate-800 px-2 py-0.5 rounded">{shortTaskId}…</span>
@@ -249,7 +249,7 @@
           <button
             class="p-1.5 rounded-md text-slate-500 bg-transparent border-none cursor-pointer transition-all hover:text-slate-100 hover:bg-slate-800"
             on:click={handleClose}
-            aria-label="Close drawer"
+            aria-label={$t.tasks?.close_drawer || "Close drawer"}
           >
             <Icon name="close" size={18} strokeWidth={2} />
           </button>
@@ -268,19 +268,19 @@
         {:else if loadingTasks}
           <div class="flex flex-col items-center justify-center p-12 text-slate-500">
             <div class="mb-4 h-8 w-8 animate-spin rounded-full border-2 border-slate-200 border-t-blue-500"></div>
-            <p>Loading tasks...</p>
+            <p>{$t.tasks?.loading || 'Loading tasks...'}</p>
           </div>
         {:else if recentTasks.length > 0}
           <div class="p-4">
-            <h3 class="text-sm font-semibold text-slate-100 mb-4 pb-2 border-b border-slate-800">Recent Tasks</h3>
+            <h3 class="text-sm font-semibold text-slate-100 mb-4 pb-2 border-b border-slate-800">{$t.tasks?.recent || 'Recent Tasks'}</h3>
             {#each recentTasks as task}
               <button
                 class="flex items-center gap-3 w-full p-3 mb-2 bg-slate-800 border border-slate-700 rounded-lg cursor-pointer transition-all hover:bg-slate-700 hover:border-slate-600 text-left"
                 on:click={() => selectTask(task)}
               >
-                <span class="font-mono text-xs text-slate-500">{task.id?.substring(0, 8) || 'N/A'}...</span>
-                <span class="flex-1 text-sm text-slate-100 font-medium">{task.plugin_id || 'Unknown'}</span>
-                <span class="text-xs font-semibold uppercase px-2 py-1 rounded-full {task.status?.toLowerCase() === 'running' || task.status?.toLowerCase() === 'pending' ? 'bg-cyan-500/15 text-cyan-400' : task.status?.toLowerCase() === 'completed' || task.status?.toLowerCase() === 'success' ? 'bg-green-500/15 text-green-400' : task.status?.toLowerCase() === 'failed' || task.status?.toLowerCase() === 'error' ? 'bg-red-500/15 text-red-400' : 'bg-slate-500/15 text-slate-400'}">{task.status || 'UNKNOWN'}</span>
+                <span class="font-mono text-xs text-slate-500">{task.id?.substring(0, 8) || ($t.common?.not_available || 'N/A')}...</span>
+                <span class="flex-1 text-sm text-slate-100 font-medium">{task.plugin_id || ($t.common?.unknown || 'Unknown')}</span>
+                <span class="text-xs font-semibold uppercase px-2 py-1 rounded-full {task.status?.toLowerCase() === 'running' || task.status?.toLowerCase() === 'pending' ? 'bg-cyan-500/15 text-cyan-400' : task.status?.toLowerCase() === 'completed' || task.status?.toLowerCase() === 'success' ? 'bg-green-500/15 text-green-400' : task.status?.toLowerCase() === 'failed' || task.status?.toLowerCase() === 'error' ? 'bg-red-500/15 text-red-400' : 'bg-slate-500/15 text-slate-400'}">{task.status || ($t.common?.unknown || 'UNKNOWN')}</span>
               </button>
             {/each}
           </div>

frontend/src/lib/components/layout/TopNavbar.svelte

@@ -29,6 +29,7 @@
   import { auth } from "$lib/auth/store.js";
   import { toggleAssistantChat } from "$lib/stores/assistantChat.js";
   import Icon from "$lib/ui/Icon.svelte";
+  import LanguageSwitcher from "$lib/ui/LanguageSwitcher.svelte";
 
   const dispatch = createEventDispatcher();
 
@@ -105,7 +106,7 @@
     <button
       class="rounded-lg p-2 text-slate-600 transition-colors hover:bg-slate-100 md:hidden"
       on:click={handleHamburgerClick}
-      aria-label="Toggle menu"
+      aria-label={$t.common?.toggle_menu || "Toggle menu"}
     >
       <Icon name="menu" size={22} />
     </button>
@@ -136,6 +137,8 @@
 
   <!-- Nav Actions -->
   <div class="flex items-center gap-3 md:gap-4">
+    <LanguageSwitcher />
+
     <!-- Assistant -->
     <button
       class="rounded-lg p-2 text-slate-600 transition-colors hover:bg-slate-100"
@@ -154,7 +157,7 @@
         (e.key === "Enter" || e.key === " ") && handleActivityClick()}
       role="button"
       tabindex="0"
-      aria-label="Activity"
+      aria-label={$t.common?.activity || "Activity"}
     >
       <Icon name="activity" size={22} />
       {#if activeCount > 0}
@@ -174,7 +177,7 @@
           (e.key === "Enter" || e.key === " ") && toggleUserMenu(e)}
         role="button"
         tabindex="0"
-        aria-label="User menu"
+        aria-label={$t.common?.user_menu || "User menu"}
       >
         {#if user}
           <span
@@ -192,7 +195,7 @@
           : 'hidden'}"
       >
         <div class="px-4 py-2 text-sm text-gray-700">
-          <strong>{user?.username || "User"}</strong>
+          <strong>{user?.username || ($t.common?.user || "User")}</strong>
         </div>
         <div class="border-t border-gray-200 my-1"></div>
         <div

frontend/src/lib/i18n/locales/en.json

@@ -1,6 +1,9 @@
 {
   "common": {
     "save": "Save",
+    "close": "Close",
+    "back": "Back",
+    "id": "ID",
     "cancel": "Cancel",
     "delete": "Delete",
     "edit": "Edit",
@@ -11,9 +14,25 @@
     "search": "Search...",
     "logout": "Logout",
     "refresh": "Refresh",
-    "retry": "Retry"
+    "retry": "Retry",
+    "toggle_menu": "Toggle menu",
+    "activity": "Activity",
+    "user_menu": "User menu",
+    "user": "User",
+    "unknown": "Unknown",
+    "not_available": "N/A",
+    "first": "First",
+    "last": "Last",
+    "per_page": "per page",
+    "close_modal": "Close modal"
   },
   "nav": {
+    "home": "Home",
+    "breadcrumb_nav": "Breadcrumb navigation",
+    "menu": "Menu",
+    "collapse": "Collapse",
+    "expand": "Expand",
+    "expand_sidebar": "Expand sidebar",
     "dashboard": "Dashboard",
     "dashboards": "Dashboards",
     "datasets": "Datasets",
@@ -63,6 +82,8 @@
     "connection_success": "Connection successful!",
     "connection_failed": "Connection failed: {error}",
     "no_providers": "No providers configured.",
+    "multimodal": "Multimodal",
+    "text_only": "Text only",
     "doc_preview_title": "Documentation Preview",
     "dataset_desc": "Dataset Description",
     "column_doc": "Column Documentation",
@@ -98,6 +119,17 @@
     "llm_prompt_documentation": "Documentation Prompt",
     "llm_prompt_dashboard_validation": "Dashboard Validation Prompt",
     "llm_prompt_git_commit": "Git Commit Prompt",
+    "llm_chatbot_settings_title": "Chatbot Planner Settings",
+    "llm_chatbot_settings_description": "Select provider and optional model override for assistant intent planning.",
+    "llm_chatbot_provider": "Chatbot Provider",
+    "llm_chatbot_model": "Chatbot Model Override",
+    "llm_chatbot_model_placeholder": "Optional, e.g. gpt-4.1-mini",
+    "llm_provider_bindings_title": "Provider Bindings by Task",
+    "llm_provider_bindings_description": "Select which provider is used by default for each LLM task.",
+    "llm_binding_dashboard_validation": "Dashboard Validation Provider",
+    "llm_binding_documentation": "Documentation Provider",
+    "llm_binding_git_commit": "Git Commit Provider",
+    "llm_multimodal_warning": "Dashboard validation requires a multimodal model (image input support).",
     "save_llm_prompts": "Save LLM Prompts",
     "logging": "Logging Configuration",
     "logging_description": "Configure logging and task log levels.",
@@ -125,7 +157,31 @@
     "server": "Git Server",
     "not_linked": "This dashboard is not yet linked to a Git repository.",
     "manage": "Manage Git",
-    "generate_message": "Generate"
+    "generate_message": "Generate",
+    "select_dashboard": "Select Dashboard to Manage"
+    ,
+    "commit_message_generated": "Commit message generated",
+    "commit_message_failed": "Failed to generate message",
+    "load_changes_failed": "Failed to load changes",
+    "commit_success": "Changes committed successfully",
+    "commit_message": "Commit Message",
+    "generate_with_ai": "Generate with AI",
+    "describe_changes": "Describe your changes...",
+    "changed_files": "Changed Files",
+    "changes_preview": "Changes Preview",
+    "loading_diff": "Loading diff...",
+    "no_changes": "No changes detected",
+    "committing": "Committing...",
+    "deploy_success": "Deployment triggered successfully",
+    "no_deploy_envs": "No deployment environments configured.",
+    "deploying": "Deploying...",
+    "init_validation_error": "Please select a Git server and provide remote URL",
+    "init_success": "Repository initialized successfully",
+    "sync_success": "Dashboard state synced to Git",
+    "push_success": "Changes pushed to remote",
+    "pull_success": "Changes pulled from remote",
+    "no_servers_configured": "No Git servers configured. Go to Settings -> Git to add one.",
+    "remote_url_placeholder": "https://github.com/org/repo.git"
   },
   "dashboard": {
     "search": "Search dashboards...",
@@ -199,6 +255,37 @@
     "last_task": "Last Task",
     "actions": "Actions",
     "action_map_columns": "Map Columns",
+    "generate_docs": "Generate Docs",
+    "generate_documentation": "Generate Documentation",
+    "search_placeholder": "Search datasets...",
+    "select_all": "Select All",
+    "deselect_all": "Deselect All",
+    "select_visible": "Select Visible",
+    "deselect_visible": "Deselect Visible",
+    "selected": "selected",
+    "selected_count": "{count} selected",
+    "bulk_map_columns": "Bulk Column Mapping",
+    "bulk_docs_generation": "Bulk Documentation Generation",
+    "source_type": "Source Type",
+    "source_postgresql_comments": "PostgreSQL Comments",
+    "source_xlsx": "XLSX File",
+    "connection_id": "Connection ID",
+    "connection_id_placeholder": "Enter connection ID...",
+    "xlsx_file": "XLSX File",
+    "selected_datasets": "Selected Datasets",
+    "start_mapping": "Start Mapping",
+    "select_llm_provider_option": "Select LLM provider...",
+    "select_llm_provider": "Please select an LLM provider",
+    "mapping_task_failed": "Failed to create mapping task",
+    "docs_task_failed": "Failed to create documentation generation task",
+    "load_failed": "Failed to load datasets",
+    "load_detail_failed": "Failed to load dataset details",
+    "missing_context": "Missing dataset ID or environment ID",
+    "sql_lab_view": "SQL Lab View",
+    "date_time": "Date/Time",
+    "inactive": "Inactive",
+    "mapped": "Mapped",
+    "unmapped": "Unmapped",
     "view_task": "View task",
     "task_running": "Running...",
     "task_done": "Done",
@@ -225,7 +312,30 @@
     "schedule_enabled": "Enabled",
     "cron_label": "Cron Expression",
     "cron_hint": "e.g., 0 0 * * * for daily at midnight",
-    "footer_text": "Task continues running in background"
+    "footer_text": "Task continues running in background",
+    "drawer": "Task drawer",
+    "close_drawer": "Close drawer",
+    "back_to_list": "Back to task list"
+  },
+  "migration": {
+    "source_env": "Source Environment",
+    "target_env": "Target Environment",
+    "loading_envs": "Loading environments...",
+    "select_both_envs": "Please select both source and target environments.",
+    "different_envs": "Source and target environments must be different.",
+    "select_dashboards": "Please select at least one dashboard to migrate.",
+    "select_dashboards_title": "Select Dashboards",
+    "replace_db": "Replace Database (Apply Mappings)",
+    "database_mappings": "Database Mappings",
+    "loading_dbs": "Loading databases and suggestions...",
+    "refresh_dbs": "Refresh Databases & Suggestions",
+    "start": "Start Migration",
+    "resume_failed": "Failed to resume task",
+    "mapping_saved": "Mapping saved successfully",
+    "mapping_management": "Database Mapping Management",
+    "fetch_dbs": "Fetch Databases & Suggestions",
+    "mapping_hint": "Select environments and click \"Fetch Databases\" to start mapping.",
+    "task_placeholder_warn": "Could not fetch task details immediately, using placeholder."
   },
   "assistant": {
     "title": "AI Assistant",
@@ -257,7 +367,14 @@
     "create": "Create Connection",
     "saved": "Saved Connections",
     "no_saved": "No connections saved yet.",
-    "delete": "Delete"
+    "delete": "Delete",
+    "required_fields": "Please fill in all required fields",
+    "created_success": "Connection created successfully",
+    "fetch_failed": "Failed to fetch connections",
+    "delete_confirm": "Are you sure you want to delete this connection?",
+    "deleted_success": "Connection deleted",
+    "name_placeholder": "e.g. Production DWH",
+    "host_placeholder": "10.0.0.1"
   },
   "storage": {
     "management": "File Storage Management",
@@ -307,16 +424,38 @@
     "excel_path": "Excel File Path",
     "run": "Run Mapper",
     "starting": "Starting...",
+    "generating": "Generating...",
     "errors": {
       "fetch_failed": "Failed to fetch data",
       "required_fields": "Please fill in required fields",
       "postgres_required": "Connection and Table Name are required for postgres source",
-      "excel_required": "Excel path is required for excel source"
+      "excel_required": "Excel path is required for excel source",
+      "no_active_llm_provider": "No active LLM provider found",
+      "docs_start_failed": "Failed to start documentation generation",
+      "docs_apply_failed": "Failed to apply documentation"
     },
     "success": {
-      "started": "Mapper task started"
+      "started": "Mapper task started",
+      "docs_started": "Documentation generation started",
+      "docs_applied": "Documentation applied successfully"
     },
-    "auto_document": "Auto-Document"
+    "auto_document": "Auto-Document",
+    "excel_placeholder": "/path/to/mapping.xlsx"
+  },
+  "debug": {
+    "title": "System Diagnostics",
+    "action": "Debug Action",
+    "test_db_api": "Test Database API (Compare Envs)",
+    "get_dataset_structure": "Get Dataset Structure (JSON)",
+    "source_target_required": "Source and Target environments are required",
+    "env_dataset_required": "Environment and Dataset ID are required",
+    "fetch_env_failed": "Failed to fetch environments",
+    "completed": "Debug task completed",
+    "failed": "Debug task failed",
+    "run": "Run Diagnostics",
+    "output": "Debug Output",
+    "select_source": "-- Select Source --",
+    "select_target": "-- Select Target --"
   },
   "admin": {
     "users": {

frontend/src/lib/i18n/locales/ru.json

@@ -1,6 +1,9 @@
 {
   "common": {
     "save": "Сохранить",
+    "close": "Закрыть",
+    "back": "Назад",
+    "id": "ID",
     "cancel": "Отмена",
     "delete": "Удалить",
     "edit": "Редактировать",
@@ -11,9 +14,25 @@
     "search": "Поиск...",
     "logout": "Выйти",
     "refresh": "Обновить",
-    "retry": "Повторить"
+    "retry": "Повторить",
+    "toggle_menu": "Переключить меню",
+    "activity": "Активность",
+    "user_menu": "Меню пользователя",
+    "user": "Пользователь",
+    "unknown": "Неизвестно",
+    "not_available": "Н/Д",
+    "first": "Первая",
+    "last": "Последняя",
+    "per_page": "на страницу",
+    "close_modal": "Закрыть модальное окно"
   },
   "nav": {
+    "home": "Главная",
+    "breadcrumb_nav": "Навигационная цепочка",
+    "menu": "Меню",
+    "collapse": "Свернуть",
+    "expand": "Развернуть",
+    "expand_sidebar": "Развернуть боковую панель",
     "dashboard": "Панель управления",
     "dashboards": "Дашборды",
     "datasets": "Датасеты",
@@ -63,6 +82,8 @@
     "connection_success": "Подключение успешно!",
     "connection_failed": "Ошибка подключения: {error}",
     "no_providers": "Провайдеры не настроены.",
+    "multimodal": "Мультимодальная",
+    "text_only": "Только текст",
     "doc_preview_title": "Предпросмотр документации",
     "dataset_desc": "Описание датасета",
     "column_doc": "Документация колонок",
@@ -98,6 +119,17 @@
     "llm_prompt_documentation": "Промпт документации",
     "llm_prompt_dashboard_validation": "Промпт проверки дашборда",
     "llm_prompt_git_commit": "Промпт git-коммита",
+    "llm_chatbot_settings_title": "Настройки планировщика чат-бота",
+    "llm_chatbot_settings_description": "Выберите провайдера и опциональную модель для планирования интентов ассистента.",
+    "llm_chatbot_provider": "Провайдер чат-бота",
+    "llm_chatbot_model": "Переопределение модели чат-бота",
+    "llm_chatbot_model_placeholder": "Опционально, например gpt-4.1-mini",
+    "llm_provider_bindings_title": "Назначение провайдеров по задачам",
+    "llm_provider_bindings_description": "Выберите провайдера по умолчанию для каждой LLM-задачи.",
+    "llm_binding_dashboard_validation": "Провайдер проверки дашборда",
+    "llm_binding_documentation": "Провайдер документации",
+    "llm_binding_git_commit": "Провайдер git-коммита",
+    "llm_multimodal_warning": "Для проверки дашборда нужна мультимодальная модель (поддержка изображений).",
     "save_llm_prompts": "Сохранить промпты LLM",
     "logging": "Настройка логирования",
     "logging_description": "Настройка уровней логирования задач.",
@@ -125,7 +157,31 @@
     "server": "Git-сервер",
     "not_linked": "Этот дашборд еще не привязан к Git-репозиторию.",
     "manage": "Управление Git",
-    "generate_message": "Сгенерировать"
+    "generate_message": "Сгенерировать",
+    "select_dashboard": "Выберите дашборд для управления"
+    ,
+    "commit_message_generated": "Сообщение коммита сгенерировано",
+    "commit_message_failed": "Не удалось сгенерировать сообщение коммита",
+    "load_changes_failed": "Не удалось загрузить изменения",
+    "commit_success": "Изменения успешно закоммичены",
+    "commit_message": "Сообщение коммита",
+    "generate_with_ai": "Сгенерировать с AI",
+    "describe_changes": "Опишите ваши изменения...",
+    "changed_files": "Измененные файлы",
+    "changes_preview": "Предпросмотр изменений",
+    "loading_diff": "Загрузка diff...",
+    "no_changes": "Изменения не обнаружены",
+    "committing": "Коммит...",
+    "deploy_success": "Деплой успешно запущен",
+    "no_deploy_envs": "Окружения для деплоя не настроены.",
+    "deploying": "Деплой...",
+    "init_validation_error": "Выберите Git-сервер и укажите URL удаленного репозитория",
+    "init_success": "Репозиторий успешно инициализирован",
+    "sync_success": "Состояние дашборда синхронизировано с Git",
+    "push_success": "Изменения отправлены в remote",
+    "pull_success": "Изменения получены из remote",
+    "no_servers_configured": "Git-серверы не настроены. Перейдите в Настройки -> Git для добавления.",
+    "remote_url_placeholder": "https://github.com/org/repo.git"
   },
   "dashboard": {
     "search": "Поиск дашбордов...",
@@ -198,6 +254,37 @@
     "last_task": "Последняя задача",
     "actions": "Действия",
     "action_map_columns": "Отобразить колонки",
+    "generate_docs": "Сгенерировать документацию",
+    "generate_documentation": "Сгенерировать документацию",
+    "search_placeholder": "Поиск датасетов...",
+    "select_all": "Выбрать все",
+    "deselect_all": "Снять выбор со всех",
+    "select_visible": "Выбрать видимые",
+    "deselect_visible": "Снять выбор с видимых",
+    "selected": "выбрано",
+    "selected_count": "Выбрано: {count}",
+    "bulk_map_columns": "Массовый маппинг колонок",
+    "bulk_docs_generation": "Массовая генерация документации",
+    "source_type": "Тип источника",
+    "source_postgresql_comments": "Комментарии PostgreSQL",
+    "source_xlsx": "XLSX-файл",
+    "connection_id": "ID подключения",
+    "connection_id_placeholder": "Введите ID подключения...",
+    "xlsx_file": "XLSX-файл",
+    "selected_datasets": "Выбранные датасеты",
+    "start_mapping": "Запустить маппинг",
+    "select_llm_provider_option": "Выберите LLM-провайдера...",
+    "select_llm_provider": "Выберите LLM-провайдера",
+    "mapping_task_failed": "Не удалось запустить задачу маппинга",
+    "docs_task_failed": "Не удалось запустить задачу генерации документации",
+    "load_failed": "Не удалось загрузить датасеты",
+    "load_detail_failed": "Не удалось загрузить детали датасета",
+    "missing_context": "Отсутствует ID датасета или окружения",
+    "sql_lab_view": "Представление SQL Lab",
+    "date_time": "Дата/время",
+    "inactive": "Неактивно",
+    "mapped": "Размечено",
+    "unmapped": "Не размечено",
     "view_task": "Просмотреть задачу",
     "task_running": "Выполняется...",
     "task_done": "Готово",
@@ -224,7 +311,30 @@
     "schedule_enabled": "Включено",
     "cron_label": "Cron-выражение",
     "cron_hint": "например, 0 0 * * * для ежедневного запуска в полночь",
-    "footer_text": "Задача продолжает работать в фоновом режиме"
+    "footer_text": "Задача продолжает работать в фоновом режиме",
+    "drawer": "Панель задач",
+    "close_drawer": "Закрыть панель задач",
+    "back_to_list": "Назад к списку задач"
+  },
+  "migration": {
+    "source_env": "Исходное окружение",
+    "target_env": "Целевое окружение",
+    "loading_envs": "Загрузка окружений...",
+    "select_both_envs": "Выберите исходное и целевое окружение.",
+    "different_envs": "Исходное и целевое окружения должны отличаться.",
+    "select_dashboards": "Выберите хотя бы один дашборд для миграции.",
+    "select_dashboards_title": "Выберите дашборды",
+    "replace_db": "Заменить БД (применить маппинги)",
+    "database_mappings": "Маппинги баз данных",
+    "loading_dbs": "Загрузка баз данных и подсказок...",
+    "refresh_dbs": "Обновить БД и подсказки",
+    "start": "Запустить миграцию",
+    "resume_failed": "Не удалось возобновить задачу",
+    "mapping_saved": "Маппинг успешно сохранен",
+    "mapping_management": "Управление маппингом БД",
+    "fetch_dbs": "Получить БД и подсказки",
+    "mapping_hint": "Выберите окружения и нажмите «Получить БД и подсказки», чтобы начать маппинг.",
+    "task_placeholder_warn": "Не удалось сразу получить детали задачи, используется временное состояние."
   },
   "assistant": {
     "title": "AI Ассистент",
@@ -256,7 +366,14 @@
     "create": "Создать подключение",
     "saved": "Сохраненные подключения",
     "no_saved": "Нет сохраненных подключений.",
-    "delete": "Удалить"
+    "delete": "Удалить",
+    "required_fields": "Заполните все обязательные поля",
+    "created_success": "Подключение успешно создано",
+    "fetch_failed": "Не удалось загрузить подключения",
+    "delete_confirm": "Вы уверены, что хотите удалить это подключение?",
+    "deleted_success": "Подключение удалено",
+    "name_placeholder": "например, Production DWH",
+    "host_placeholder": "10.0.0.1"
   },
   "storage": {
     "management": "Управление хранилищем файлов",
@@ -306,16 +423,38 @@
     "excel_path": "Путь к файлу Excel",
     "run": "Запустить маппер",
     "starting": "Запуск...",
+    "generating": "Генерация...",
     "errors": {
       "fetch_failed": "Не удалось загрузить данные",
       "required_fields": "Пожалуйста, заполните обязательные поля",
       "postgres_required": "Подключение и имя таблицы обязательны для источника PostgreSQL",
-      "excel_required": "Путь к Excel обязателен для источника Excel"
+      "excel_required": "Путь к Excel обязателен для источника Excel",
+      "no_active_llm_provider": "Не найден активный LLM-провайдер",
+      "docs_start_failed": "Не удалось запустить генерацию документации",
+      "docs_apply_failed": "Не удалось применить документацию"
     },
     "success": {
-      "started": "Задача маппинга запущена"
+      "started": "Задача маппинга запущена",
+      "docs_started": "Генерация документации запущена",
+      "docs_applied": "Документация успешно применена"
     },
-    "auto_document": "Авто-документирование"
+    "auto_document": "Авто-документирование",
+    "excel_placeholder": "/path/to/mapping.xlsx"
+  },
+  "debug": {
+    "title": "Системная диагностика",
+    "action": "Действие отладки",
+    "test_db_api": "Проверить Database API (сравнение окружений)",
+    "get_dataset_structure": "Получить структуру датасета (JSON)",
+    "source_target_required": "Требуются исходное и целевое окружения",
+    "env_dataset_required": "Требуются окружение и ID датасета",
+    "fetch_env_failed": "Не удалось загрузить окружения",
+    "completed": "Задача диагностики завершена",
+    "failed": "Задача диагностики завершилась с ошибкой",
+    "run": "Запустить диагностику",
+    "output": "Результат диагностики",
+    "select_source": "-- Выберите источник --",
+    "select_target": "-- Выберите цель --"
   },
   "admin": {
     "users": {

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

@@ -17,6 +17,13 @@
   let providers = [];
   let loading = true;
   let savingPrompts = false;
+  let plannerProvider = '';
+  let plannerModel = '';
+  let bindings = {
+    dashboard_validation: '',
+    documentation: '',
+    git_commit: '',
+  };
   let prompts = {
     documentation_prompt: '',
     dashboard_validation_prompt: '',
@@ -31,6 +38,30 @@
     git_commit_prompt:
       "Generate a concise and professional git commit message based on the following diff and recent history.\\nUse Conventional Commits format (e.g., feat: ..., fix: ..., docs: ...).\\n\\nRecent History:\\n{history}\\n\\nDiff:\\n{diff}\\n\\nCommit Message:",
   };
+  const DEFAULT_LLM_PROVIDER_BINDINGS = {
+    dashboard_validation: '',
+    documentation: '',
+    git_commit: '',
+  };
+
+  function isMultimodalModel(modelName) {
+    const token = (modelName || '').toLowerCase();
+    if (!token) return false;
+    return (
+      token.includes('gpt-4o') ||
+      token.includes('gpt-4.1') ||
+      token.includes('vision') ||
+      token.includes('vl') ||
+      token.includes('gemini') ||
+      token.includes('claude-3') ||
+      token.includes('claude-sonnet-4')
+    );
+  }
+
+  function getProviderById(providerId) {
+    if (!providerId) return null;
+    return providers.find((item) => item.id === providerId) || null;
+  }
 
   async function fetchProviders() {
     loading = true;
@@ -44,6 +75,12 @@
         ...DEFAULT_LLM_PROMPTS,
         ...(consolidatedSettings?.llm?.prompts || {}),
       };
+      bindings = {
+        ...DEFAULT_LLM_PROVIDER_BINDINGS,
+        ...(consolidatedSettings?.llm?.provider_bindings || {}),
+      };
+      plannerProvider = consolidatedSettings?.llm?.assistant_planner_provider || '';
+      plannerModel = consolidatedSettings?.llm?.assistant_planner_model || '';
     } catch (err) {
       console.error("Failed to fetch providers", err);
     } finally {
@@ -51,7 +88,7 @@
     }
   }
 
-  async function savePrompts() {
+  async function saveSettings() {
     savingPrompts = true;
     try {
       const current = await requestApi('/settings/consolidated');
@@ -63,12 +100,18 @@
             ...DEFAULT_LLM_PROMPTS,
             ...prompts,
           },
+          provider_bindings: {
+            ...DEFAULT_LLM_PROVIDER_BINDINGS,
+            ...bindings,
+          },
+          assistant_planner_provider: plannerProvider || '',
+          assistant_planner_model: plannerModel || '',
         },
       };
       await requestApi('/settings/consolidated', 'PATCH', payload);
       addToast($t.settings?.save_success || 'Settings saved', 'success');
     } catch (err) {
-      console.error('[LLMSettingsPage][Coherence:Failed] Failed to save prompts', err);
+      console.error('[LLMSettingsPage][Coherence:Failed] Failed to save llm settings', err);
       addToast($t.settings?.save_failed || 'Failed to save settings', 'error');
     } finally {
       savingPrompts = false;
@@ -93,6 +136,121 @@
   {:else}
     <ProviderConfig {providers} onSave={fetchProviders} />
 
+    <div class="mt-6 rounded-lg border border-gray-200 bg-white p-4">
+      <h2 class="text-lg font-semibold text-gray-900">
+        {$t.settings?.llm_chatbot_settings_title || 'Chatbot Planner Settings'}
+      </h2>
+      <p class="mt-1 text-sm text-gray-600">
+        {$t.settings?.llm_chatbot_settings_description ||
+          'Select provider and optional model override for assistant intent planning.'}
+      </p>
+
+      <div class="mt-4 grid grid-cols-1 gap-4 md:grid-cols-2">
+        <div>
+          <label for="admin-planner-provider" class="block text-sm font-medium text-gray-700">
+            {$t.settings?.llm_chatbot_provider || 'Chatbot Provider'}
+          </label>
+          <select
+            id="admin-planner-provider"
+            bind:value={plannerProvider}
+            class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+          >
+            <option value="">{$t.dashboard?.use_default || 'Use Default'}</option>
+            {#each providers as provider}
+              <option value={provider.id}>
+                {provider.name} ({provider.default_model})
+              </option>
+            {/each}
+          </select>
+        </div>
+
+        <div>
+          <label for="admin-planner-model" class="block text-sm font-medium text-gray-700">
+            {$t.settings?.llm_chatbot_model || 'Chatbot Model Override'}
+          </label>
+          <input
+            id="admin-planner-model"
+            type="text"
+            bind:value={plannerModel}
+            placeholder={$t.settings?.llm_chatbot_model_placeholder || 'Optional, e.g. gpt-4.1-mini'}
+            class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+          />
+        </div>
+      </div>
+    </div>
+
+    <div class="mt-6 rounded-lg border border-gray-200 bg-white p-4">
+      <h2 class="text-lg font-semibold text-gray-900">
+        {$t.settings?.llm_provider_bindings_title || 'Provider Bindings by Task'}
+      </h2>
+      <p class="mt-1 text-sm text-gray-600">
+        {$t.settings?.llm_provider_bindings_description ||
+          'Select which provider is used by default for each LLM task.'}
+      </p>
+
+      <div class="mt-4 grid grid-cols-1 gap-4 md:grid-cols-2">
+        <div>
+          <label for="admin-binding-dashboard-validation" class="block text-sm font-medium text-gray-700">
+            {$t.settings?.llm_binding_dashboard_validation || 'Dashboard Validation Provider'}
+          </label>
+          <select
+            id="admin-binding-dashboard-validation"
+            bind:value={bindings.dashboard_validation}
+            class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+          >
+            <option value="">{$t.dashboard?.use_default || 'Use Default'}</option>
+            {#each providers as provider}
+              <option value={provider.id}>
+                {provider.name} ({provider.default_model})
+              </option>
+            {/each}
+          </select>
+          {#if bindings.dashboard_validation && !isMultimodalModel(getProviderById(bindings.dashboard_validation)?.default_model)}
+            <p class="mt-1 text-xs text-amber-700">
+              {$t.settings?.llm_multimodal_warning ||
+                'Dashboard validation requires a multimodal model (image input).'}
+            </p>
+          {/if}
+        </div>
+
+        <div>
+          <label for="admin-binding-documentation" class="block text-sm font-medium text-gray-700">
+            {$t.settings?.llm_binding_documentation || 'Documentation Provider'}
+          </label>
+          <select
+            id="admin-binding-documentation"
+            bind:value={bindings.documentation}
+            class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+          >
+            <option value="">{$t.dashboard?.use_default || 'Use Default'}</option>
+            {#each providers as provider}
+              <option value={provider.id}>
+                {provider.name} ({provider.default_model})
+              </option>
+            {/each}
+          </select>
+        </div>
+
+        <div class="md:col-span-2">
+          <label for="admin-binding-git-commit" class="block text-sm font-medium text-gray-700">
+            {$t.settings?.llm_binding_git_commit || 'Git Commit Provider'}
+          </label>
+          <select
+            id="admin-binding-git-commit"
+            bind:value={bindings.git_commit}
+            class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+          >
+            <option value="">{$t.dashboard?.use_default || 'Use Default'}</option>
+            {#each providers as provider}
+              <option value={provider.id}>
+                {provider.name} ({provider.default_model})
+              </option>
+            {/each}
+          </select>
+        </div>
+      </div>
+    </div>
+
     <div class="mt-6 rounded-lg border border-gray-200 bg-gray-50 p-4">
       <h2 class="text-lg font-semibold text-gray-900">
         {$t.settings?.llm_prompts_title || 'LLM Prompt Templates'}
@@ -144,7 +302,7 @@
         <button
           class="rounded bg-blue-600 px-4 py-2 text-white hover:bg-blue-700 disabled:opacity-60"
           disabled={savingPrompts}
-          on:click={savePrompts}
+          on:click={saveSettings}
         >
           {savingPrompts ? '...' : ($t.settings?.save_llm_prompts || 'Save LLM Prompts')}
         </button>

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

@@ -135,7 +135,7 @@
       // Update selection state
       updateSelectionState();
     } catch (err) {
-      error = err.message || 'Failed to load datasets';
+      error = err.message || ($t.datasets?.load_failed || 'Failed to load datasets');
       console.error('[DatasetHub][Coherence:Failed]', err);
     } finally {
       isLoading = false;
@@ -289,7 +289,7 @@
       }
     } catch (err) {
       console.error('[DatasetHub][Coherence:Failed]', err);
-      alert('Failed to create mapping task');
+      alert($t.datasets?.mapping_task_failed || 'Failed to create mapping task');
     }
   }
 
@@ -297,7 +297,7 @@
   async function handleBulkGenerateDocs() {
     if (selectedIds.size === 0) return;
     if (!llmProvider) {
-      alert('Please select an LLM provider');
+      alert($t.datasets?.select_llm_provider || 'Please select an LLM provider');
       return;
     }
     
@@ -320,7 +320,7 @@
       }
     } catch (err) {
       console.error('[DatasetHub][Coherence:Failed]', err);
-      alert('Failed to create documentation generation task');
+      alert($t.datasets?.docs_task_failed || 'Failed to create documentation generation task');
     }
   }
 
@@ -430,18 +430,18 @@
           on:click={handleSelectAll}
           disabled={total === 0}
         >
-          {isAllSelected ? 'Deselect All' : 'Select All'}
+          {isAllSelected ? ($t.datasets?.deselect_all || 'Deselect All') : ($t.datasets?.select_all || 'Select All')}
         </button>
         <button 
           class="px-2 py-1 text-sm border border-gray-300 rounded hover:bg-gray-100" 
           on:click={handleSelectVisible}
           disabled={datasets.length === 0}
         >
-          {isAllVisibleSelected ? 'Deselect Visible' : 'Select Visible'}
+          {isAllVisibleSelected ? ($t.datasets?.deselect_visible || 'Deselect Visible') : ($t.datasets?.select_visible || 'Select Visible')}
         </button>
         {#if selectedIds.size > 0}
           <span class="text-sm text-gray-600">
-            {selectedIds.size} selected
+            {($t.datasets?.selected_count || "{count} selected").replace("{count}", String(selectedIds.size))}
           </span>
         {/if}
       </div>
@@ -449,7 +449,7 @@
         <input 
           type="text" 
           class="px-2 py-1 border border-gray-300 rounded bg-white focus:outline-none focus:ring-2 focus:ring-blue-500" 
-          placeholder="Search datasets..." 
+          placeholder={$t.datasets?.search_placeholder || "Search datasets..."} 
           on:input={handleSearch}
           value={searchQuery}
         />
@@ -554,7 +554,10 @@
     {#if totalPages > 1}
       <div class="flex items-center justify-between px-3 py-3 bg-gray-50 border-t border-gray-200">
         <div class="text-sm text-gray-500">
-          Showing {((currentPage - 1) * pageSize) + 1}-{Math.min(currentPage * pageSize, total)} of {total}
+          {($t.dashboard?.showing || "Showing {start} to {end} of {total} dashboards")
+            .replace("{start}", String(((currentPage - 1) * pageSize) + 1))
+            .replace("{end}", String(Math.min(currentPage * pageSize, total)))
+            .replace("{total}", String(total))}
         </div>
         <div class="flex items-center gap-2">
           <button 
@@ -562,14 +565,14 @@
             on:click={() => handlePageChange(1)}
             disabled={currentPage === 1}
           >
-            First
+            {$t.common?.first || 'First'}
           </button>
           <button 
             class="px-2 py-1 text-sm border border-gray-300 rounded hover:bg-gray-100 disabled:opacity-50 disabled:cursor-not-allowed" 
             on:click={() => handlePageChange(currentPage - 1)}
             disabled={currentPage === 1}
           >
-            Previous
+            {$t.dashboard?.previous || 'Previous'}
           </button>
           {#each Array.from({length: totalPages}, (_, i) => i + 1) as pageNum}
             <button 
@@ -584,14 +587,14 @@
             on:click={() => handlePageChange(currentPage + 1)}
             disabled={currentPage === totalPages}
           >
-            Next
+            {$t.dashboard?.next || 'Next'}
           </button>
           <button 
             class="px-2 py-1 text-sm border border-gray-300 rounded hover:bg-gray-100 disabled:opacity-50 disabled:cursor-not-allowed" 
             on:click={() => handlePageChange(totalPages)}
             disabled={currentPage === totalPages}
           >
-            Last
+            {$t.common?.last || 'Last'}
           </button>
         </div>
         <div>
@@ -600,11 +603,11 @@
             value={pageSize} 
             on:change={handlePageSizeChange}
           >
-            <option value={5}>5 per page</option>
-            <option value={10}>10 per page</option>
-            <option value={25}>25 per page</option>
-            <option value={50}>50 per page</option>
-            <option value={100}>100 per page</option>
+            <option value={5}>5 {$t.common?.per_page || 'per page'}</option>
+            <option value={10}>10 {$t.common?.per_page || 'per page'}</option>
+            <option value={25}>25 {$t.common?.per_page || 'per page'}</option>
+            <option value={50}>50 {$t.common?.per_page || 'per page'}</option>
+            <option value={100}>100 {$t.common?.per_page || 'per page'}</option>
           </select>
         </div>
       </div>
@@ -616,7 +619,7 @@
         <div class="flex items-center justify-between max-w-7xl mx-auto">
           <div class="flex items-center gap-4">
             <span class="font-medium">
-              ✓ {selectedIds.size} selected
+              ✓ {selectedIds.size} {$t.datasets?.selected || 'selected'}
             </span>
           </div>
           <div class="flex gap-3">
@@ -624,19 +627,19 @@
               class="px-3 py-1.5 bg-blue-600 text-white rounded hover:bg-blue-700" 
               on:click={() => showMapColumnsModal = true}
             >
-              Map Columns
+              {$t.datasets?.action_map_columns || 'Map Columns'}
             </button>
             <button 
               class="px-3 py-1.5 bg-blue-600 text-white rounded hover:bg-blue-700" 
               on:click={() => showGenerateDocsModal = true}
             >
-              Generate Docs
+              {$t.datasets?.generate_docs || 'Generate Docs'}
             </button>
             <button 
               class="px-3 py-1.5 border border-gray-300 rounded hover:bg-gray-100" 
               on:click={() => selectedIds.clear()}
             >
-              Cancel
+              {$t.common?.cancel || 'Cancel'}
             </button>
           </div>
         </div>
@@ -649,8 +652,8 @@
     <div class="fixed inset-0 bg-black/50 flex items-center justify-center z-50" on:click={() => showMapColumnsModal = false}>
       <div class="bg-white rounded-lg shadow-2xl max-w-xl w-full m-4 max-h-[80vh] overflow-y-auto" on:click|stopPropagation>
         <div class="px-4 py-3 border-b border-gray-200 flex items-center justify-between relative">
-          <h2 class="text-xl font-bold">Bulk Column Mapping</h2>
-          <button on:click={() => showMapColumnsModal = false} class="absolute top-4 right-4 p-1 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-full" aria-label="Close modal">
+          <h2 class="text-xl font-bold">{$t.datasets?.bulk_map_columns || 'Bulk Column Mapping'}</h2>
+          <button on:click={() => showMapColumnsModal = false} class="absolute top-4 right-4 p-1 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-full" aria-label={$t.common?.close_modal || "Close modal"}>
             <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
               <line x1="18" y1="6" x2="6" y2="18"></line>
               <line x1="6" y1="6" x2="18" y2="18"></line>
@@ -660,28 +663,28 @@
         <div class="p-4">
           <div class="space-y-4">
             <div>
-              <label class="block text-sm font-medium mb-2">Source Type</label>
+              <label class="block text-sm font-medium mb-2">{$t.datasets?.source_type || 'Source Type'}</label>
               <select 
                 class="w-full px-2 py-1 border border-gray-300 rounded focus:outline-none focus:ring-2 focus:ring-blue-500" 
                 bind:value={mapSourceType}
               >
-                <option value="postgresql">PostgreSQL Comments</option>
-                <option value="xlsx">XLSX File</option>
+                <option value="postgresql">{$t.datasets?.source_postgresql_comments || 'PostgreSQL Comments'}</option>
+                <option value="xlsx">{$t.datasets?.source_xlsx || 'XLSX File'}</option>
               </select>
             </div>
             {#if mapSourceType === 'postgresql'}
               <div>
-                <label class="block text-sm font-medium mb-2">Connection ID</label>
+                <label class="block text-sm font-medium mb-2">{$t.datasets?.connection_id || 'Connection ID'}</label>
                 <input
                   type="text"
                   class="w-full px-2 py-1 border border-gray-300 rounded focus:outline-none focus:ring-2 focus:ring-blue-500"
-                  placeholder="Enter connection ID..."
+                  placeholder={$t.datasets?.connection_id_placeholder || "Enter connection ID..."}
                   bind:value={mapConnectionId}
                 />
               </div>
             {:else}
               <div>
-                <label class="block text-sm font-medium mb-2">XLSX File</label>
+                <label class="block text-sm font-medium mb-2">{$t.datasets?.xlsx_file || 'XLSX File'}</label>
                 <input
                   type="file"
                   class="w-full"
@@ -692,7 +695,7 @@
               </div>
             {/if}
             <div>
-              <label class="block text-sm font-medium mb-2">Selected Datasets</label>
+              <label class="block text-sm font-medium mb-2">{$t.datasets?.selected_datasets || 'Selected Datasets'}</label>
               <div class="max-h-40 overflow-y-auto">
                 {#each Array.from(selectedIds) as id}
                   {#each datasets as d}
@@ -706,14 +709,14 @@
           </div>
         </div>
         <div class="px-4 py-3 border-t border-gray-200 flex justify-end gap-3">
-          <button class="px-3 py-1.5 border border-gray-300 rounded hover:bg-gray-100" on:click={() => showMapColumnsModal = false}>Cancel</button>
+          <button class="px-3 py-1.5 border border-gray-300 rounded hover:bg-gray-100" on:click={() => showMapColumnsModal = false}>{$t.common?.cancel || 'Cancel'}</button>
           <button
             type="button"
             class="px-3 py-1.5 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed"
             on:click|preventDefault={handleBulkMapColumns}
             disabled={selectedIds.size === 0 || (mapSourceType === 'postgresql' && !mapConnectionId) || (mapSourceType === 'xlsx' && (!mapFileData || mapFileData.length === 0))}
           >
-            Start Mapping
+            {$t.datasets?.start_mapping || 'Start Mapping'}
           </button>
         </div>
       </div>
@@ -725,8 +728,8 @@
     <div class="fixed inset-0 bg-black/50 flex items-center justify-center z-50" on:click={() => showGenerateDocsModal = false}>
       <div class="bg-white rounded-lg shadow-2xl max-w-xl w-full m-4 max-h-[80vh] overflow-y-auto" on:click|stopPropagation>
         <div class="px-4 py-3 border-b border-gray-200 flex items-center justify-between relative">
-          <h2 class="text-xl font-bold">Bulk Documentation Generation</h2>
-          <button on:click={() => showGenerateDocsModal = false} class="absolute top-4 right-4 p-1 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-full" aria-label="Close modal">
+          <h2 class="text-xl font-bold">{$t.datasets?.bulk_docs_generation || 'Bulk Documentation Generation'}</h2>
+          <button on:click={() => showGenerateDocsModal = false} class="absolute top-4 right-4 p-1 text-gray-400 hover:text-gray-600 hover:bg-gray-100 rounded-full" aria-label={$t.common?.close_modal || "Close modal"}>
             <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
               <line x1="18" y1="6" x2="6" y2="18"></line>
               <line x1="6" y1="6" x2="18" y2="18"></line>
@@ -736,19 +739,19 @@
         <div class="p-4">
           <div class="space-y-4">
             <div>
-              <label class="block text-sm font-medium mb-2">LLM Provider</label>
+              <label class="block text-sm font-medium mb-2">{$t.dashboard?.llm_provider || 'LLM Provider'}</label>
               <select 
                 class="w-full px-2 py-1 border border-gray-300 rounded focus:outline-none focus:ring-2 focus:ring-blue-500" 
                 bind:value={llmProvider}
               >
-                <option value="">Select LLM provider...</option>
+                <option value="">{$t.datasets?.select_llm_provider_option || 'Select LLM provider...'}</option>
                 <option value="openai">OpenAI</option>
                 <option value="anthropic">Anthropic</option>
                 <option value="cohere">Cohere</option>
               </select>
             </div>
             <div>
-              <label class="block text-sm font-medium mb-2">Selected Datasets</label>
+              <label class="block text-sm font-medium mb-2">{$t.datasets?.selected_datasets || 'Selected Datasets'}</label>
               <div class="max-h-40 overflow-y-auto">
                 {#each Array.from(selectedIds) as id}
                   {#each datasets as d}
@@ -762,13 +765,13 @@
           </div>
         </div>
         <div class="px-4 py-3 border-t border-gray-200 flex justify-end gap-3">
-          <button class="px-3 py-1.5 border border-gray-300 rounded hover:bg-gray-100" on:click={() => showGenerateDocsModal = false}>Cancel</button>
+          <button class="px-3 py-1.5 border border-gray-300 rounded hover:bg-gray-100" on:click={() => showGenerateDocsModal = false}>{$t.common?.cancel || 'Cancel'}</button>
           <button 
             class="px-3 py-1.5 bg-blue-600 text-white rounded hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed" 
             on:click={handleBulkGenerateDocs}
             disabled={!llmProvider || selectedIds.size === 0}
           >
-            Generate Documentation
+            {$t.datasets?.generate_documentation || 'Generate Documentation'}
           </button>
         </div>
       </div>

frontend/src/routes/datasets/[id]/+page.svelte

@@ -38,7 +38,7 @@
   // Load dataset details from API
   async function loadDatasetDetail() {
     if (!datasetId || !envId) {
-      error = "Missing dataset ID or environment ID";
+      error = $t.datasets?.missing_context || "Missing dataset ID or environment ID";
       isLoading = false;
       return;
     }
@@ -49,7 +49,7 @@
       const response = await api.getDatasetDetail(envId, datasetId);
       dataset = response;
     } catch (err) {
-      error = err.message || "Failed to load dataset details";
+      error = err.message || ($t.datasets?.load_detail_failed || "Failed to load dataset details");
       console.error("[DatasetDetail][Coherence:Failed]", err);
     } finally {
       isLoading = false;
@@ -63,7 +63,7 @@
 
   // Navigate back to dataset list
   function goBack() {
-    goto(`/dashboards?env_id=${envId}`);
+    goto(`/datasets?env_id=${envId}`);
   }
 
   // Get column type icon/color
@@ -232,7 +232,7 @@
             <span class="text-sm text-gray-500"
               >{$t.datasets?.type || "Type"}</span
             >
-            <span class="text-sm font-medium text-gray-900">SQL Lab View</span>
+            <span class="text-sm font-medium text-gray-900">{$t.datasets?.sql_lab_view || "SQL Lab View"}</span>
           </div>
         {/if}
         {#if dataset.created_on}
@@ -334,17 +334,17 @@
                 </div>
                 <div class="flex items-center gap-2 text-xs text-gray-500">
                   {#if column.is_dttm}
-                    <span class="text-xs text-green-600">📅 Date/Time</span>
+                    <span class="text-xs text-green-600">📅 {$t.datasets?.date_time || "Date/Time"}</span>
                   {/if}
                   {#if !column.is_active}
-                    <span class="text-xs text-gray-400">(Inactive)</span>
+                    <span class="text-xs text-gray-400">({$t.datasets?.inactive || "Inactive"})</span>
                   {/if}
                   <span
                     class="inline-flex items-center px-2 py-0.5 text-xs rounded-full {column.description
                       ? 'bg-green-100 text-green-800'
                       : 'bg-gray-100 text-gray-600'}"
                   >
-                    {column.description ? "✓ Mapped" : "Unmapped"}
+                    {column.description ? `✓ ${$t.datasets?.mapped || "Mapped"}` : ($t.datasets?.unmapped || "Unmapped")}
                   </span>
                 </div>
                 {#if column.description}

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

@@ -64,10 +64,10 @@
 </script>
 
 <div class="max-w-6xl mx-auto p-6">
-  <PageHeader title="Git Dashboard Management">
+  <PageHeader title={$t.git?.management || "Git Management"}>
     <div slot="actions" class="flex items-center space-x-4">
       <Select
-        label="Environment"
+        label={$t.dashboard?.environment || "Environment"}
         bind:value={selectedEnvId}
         options={environments.map(e => ({ value: e.id, label: e.name }))}
       />
@@ -79,13 +79,13 @@
       <div class="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600"></div>
     </div>
   {:else}
-    <Card title="Select Dashboard to Manage">
+    <Card title={$t.git?.select_dashboard || "Select Dashboard to Manage"}>
       {#if fetchingDashboards}
-        <p class="text-gray-500">Loading dashboards...</p>
+        <p class="text-gray-500">{$t.common?.loading || "Loading..."}</p>
       {:else if dashboards.length > 0}
         <DashboardGrid {dashboards} />
       {:else}
-        <p class="text-gray-500 italic">No dashboards found in this environment.</p>
+        <p class="text-gray-500 italic">{$t.dashboard?.no_dashboards || "No dashboards found in this environment."}</p>
       {/if}
     </Card>
   {/if}

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

@@ -202,7 +202,7 @@
           // Task status update will be handled by store/websocket
       } catch (e) {
           console.error("Failed to resume task:", e);
-          passwordPromptErrorMessage = e.message;
+          passwordPromptErrorMessage = e.message || ($t.migration?.resume_failed || "Failed to resume task");
           // Keep prompt open
       }
   }
@@ -216,15 +216,15 @@
    */
   async function startMigration() {
     if (!sourceEnvId || !targetEnvId) {
-      error = "Please select both source and target environments.";
+      error = $t.migration?.select_both_envs || "Please select both source and target environments.";
       return;
     }
     if (sourceEnvId === targetEnvId) {
-      error = "Source and target environments must be different.";
+      error = $t.migration?.different_envs || "Source and target environments must be different.";
       return;
     }
     if (selectedDashboardIds.length === 0) {
-      error = "Please select at least one dashboard to migrate.";
+      error = $t.migration?.select_dashboards || "Please select at least one dashboard to migrate.";
       return;
     }
 
@@ -249,7 +249,7 @@
         selectedTask.set(task);
       } catch (fetchErr) {
         // Fallback: create a temporary task object to switch view immediately
-        console.warn("Could not fetch task details immediately, using placeholder.");
+        console.warn($t.migration?.task_placeholder_warn || "Could not fetch task details immediately, using placeholder.");
         selectedTask.set({
             id: result.task_id,
             plugin_id: 'superset-migration',
@@ -283,7 +283,7 @@
     </div>
   {:else}
     {#if loading}
-      <p>Loading environments...</p>
+      <p>{$t.migration?.loading_envs || "Loading environments..."}</p>
     {:else if error}
       <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">
         {error}
@@ -292,12 +292,12 @@
 
     <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
       <EnvSelector
-        label="Source Environment"
+        label={$t.migration?.source_env || "Source Environment"}
         bind:selectedId={sourceEnvId}
         {environments}
       />
       <EnvSelector
-        label="Target Environment"
+        label={$t.migration?.target_env || "Target Environment"}
         bind:selectedId={targetEnvId}
         {environments}
       />
@@ -305,7 +305,7 @@
 
     <!-- [DEF:DashboardSelectionSection:Component] -->
     <div class="mb-8">
-      <h2 class="text-lg font-medium mb-4">Select Dashboards</h2>
+      <h2 class="text-lg font-medium mb-4">{$t.migration?.select_dashboards_title || "Select Dashboards"}</h2>
       
       {#if sourceEnvId}
         <DashboardGrid
@@ -314,7 +314,7 @@
           environmentId={sourceEnvId}
         />
       {:else}
-        <p class="text-gray-500 italic">Select a source environment to view dashboards.</p>
+        <p class="text-gray-500 italic">{$t.dashboard?.select_source || "Select a source environment to view dashboards."}</p>
       {/if}
     </div>
     <!-- [/DEF:DashboardSelectionSection:Component] -->
@@ -329,15 +329,15 @@
         class="h-4 w-4 text-indigo-600 focus:ring-indigo-500 border-gray-300 rounded"
       />
       <label for="replace-db" class="ml-2 block text-sm text-gray-900">
-        Replace Database (Apply Mappings)
+        {$t.migration?.replace_db || "Replace Database (Apply Mappings)"}
       </label>
     </div>
 
     {#if replaceDb}
       <div class="mb-8 p-4 border rounded-md bg-gray-50">
-        <h3 class="text-md font-medium mb-4">Database Mappings</h3>
+        <h3 class="text-md font-medium mb-4">{$t.migration?.database_mappings || "Database Mappings"}</h3>
         {#if fetchingDbs}
-          <p>Loading databases and suggestions...</p>
+          <p>{$t.migration?.loading_dbs || "Loading databases and suggestions..."}</p>
         {:else if sourceDatabases.length > 0}
           <MappingTable
             {sourceDatabases}
@@ -351,7 +351,7 @@
             on:click={fetchDatabases}
             class="text-indigo-600 hover:text-indigo-500 text-sm font-medium"
           >
-            Refresh Databases & Suggestions
+            {$t.migration?.refresh_dbs || "Refresh Databases & Suggestions"}
           </button>
         {/if}
       </div>
@@ -361,7 +361,7 @@
       on:click={startMigration}
       disabled={!sourceEnvId || !targetEnvId || sourceEnvId === targetEnvId || selectedDashboardIds.length === 0}
     >
-      Start Migration
+      {$t.migration?.start || "Start Migration"}
     </Button>
   {/if}
 </div>

frontend/src/routes/migration/mappings/+page.svelte

@@ -106,7 +106,7 @@
       });
 
       mappings = [...mappings.filter(m => m.source_db_uuid !== sourceUuid), savedMapping];
-      success = "Mapping saved successfully";
+      success = $t.migration?.mapping_saved || "Mapping saved successfully";
     } catch (e) {
       error = e.message;
     }
@@ -116,20 +116,20 @@
 
 <!-- [SECTION: TEMPLATE] -->
 <div class="max-w-6xl mx-auto p-6">
-  <PageHeader title="Database Mapping Management" />
+  <PageHeader title={$t.migration?.mapping_management || "Database Mapping Management"} />
 
   {#if loading}
-    <p>Loading environments...</p>
+    <p>{$t.migration?.loading_envs || "Loading environments..."}</p>
   {:else}
     <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
       <EnvSelector
-        label="Source Environment"
+        label={$t.migration?.source_env || "Source Environment"}
         bind:selectedId={sourceEnvId}
         {environments}
         on:change={() => { sourceDatabases = []; mappings = []; suggestions = []; }}
       />
       <EnvSelector
-        label="Target Environment"
+        label={$t.migration?.target_env || "Target Environment"}
         bind:selectedId={targetEnvId}
         {environments}
         on:change={() => { targetDatabases = []; mappings = []; suggestions = []; }}
@@ -142,7 +142,7 @@
         disabled={!sourceEnvId || !targetEnvId || sourceEnvId === targetEnvId || fetchingDbs}
         isLoading={fetchingDbs}
       >
-        Fetch Databases & Suggestions
+        {$t.migration?.fetch_dbs || "Fetch Databases & Suggestions"}
       </Button>
     </div>
 
@@ -167,7 +167,7 @@
         on:update={handleUpdate}
       />
     {:else if !fetchingDbs && sourceEnvId && targetEnvId}
-      <p class="text-gray-500 italic">Select environments and click "Fetch Databases" to start mapping.</p>
+      <p class="text-gray-500 italic">{$t.migration?.mapping_hint || 'Select environments and click "Fetch Databases" to start mapping.'}</p>
     {/if}
   {/if}
 </div>

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

@@ -28,6 +28,11 @@
     git_commit_prompt:
       "Generate a concise and professional git commit message based on the following diff and recent history.\\nUse Conventional Commits format (e.g., feat: ..., fix: ..., docs: ...).\\n\\nRecent History:\\n{history}\\n\\nDiff:\\n{diff}\\n\\nCommit Message:",
   };
+  const DEFAULT_LLM_PROVIDER_BINDINGS = {
+    dashboard_validation: "",
+    documentation: "",
+    git_commit: "",
+  };
 
   // State
   let activeTab = "environments";
@@ -77,15 +82,50 @@
       providers: [],
       default_provider: "",
       prompts: { ...DEFAULT_LLM_PROMPTS },
+      provider_bindings: { ...DEFAULT_LLM_PROVIDER_BINDINGS },
+      assistant_planner_provider: "",
+      assistant_planner_model: "",
       ...(llm || {}),
     };
     normalized.prompts = {
       ...DEFAULT_LLM_PROMPTS,
       ...(llm?.prompts || {}),
     };
+    normalized.provider_bindings = {
+      ...DEFAULT_LLM_PROVIDER_BINDINGS,
+      ...(llm?.provider_bindings || {}),
+    };
+    normalized.assistant_planner_provider = llm?.assistant_planner_provider || "";
+    normalized.assistant_planner_model = llm?.assistant_planner_model || "";
     return normalized;
   }
 
+  function isMultimodalModel(modelName) {
+    const token = (modelName || "").toLowerCase();
+    if (!token) return false;
+    return (
+      token.includes("gpt-4o") ||
+      token.includes("gpt-4.1") ||
+      token.includes("vision") ||
+      token.includes("vl") ||
+      token.includes("gemini") ||
+      token.includes("claude-3") ||
+      token.includes("claude-sonnet-4")
+    );
+  }
+
+  function getProviderById(providerId) {
+    if (!providerId) return null;
+    return (settings?.llm_providers || []).find((p) => p.id === providerId) || null;
+  }
+
+  function isDashboardValidationBindingValid() {
+    const providerId = settings?.llm?.provider_bindings?.dashboard_validation;
+    if (!providerId) return true;
+    const provider = getProviderById(providerId);
+    return provider ? isMultimodalModel(provider.default_model) : true;
+  }
+
   // Handle tab change
   function handleTabChange(tab) {
     activeTab = tab;
@@ -670,6 +710,121 @@
             onSave={loadSettings}
           />
 
+          <div class="mt-6 rounded-lg border border-gray-200 bg-white p-4">
+            <h3 class="text-base font-semibold text-gray-900">
+              {$t.settings?.llm_chatbot_settings_title || "Chatbot Planner Settings"}
+            </h3>
+            <p class="mt-1 text-sm text-gray-600">
+              {$t.settings?.llm_chatbot_settings_description ||
+                "Select provider and optional model override for assistant intent planning."}
+            </p>
+
+            <div class="mt-4 grid grid-cols-1 gap-4 md:grid-cols-2">
+              <div>
+                <label for="planner-provider" class="block text-sm font-medium text-gray-700">
+                  {$t.settings?.llm_chatbot_provider || "Chatbot Provider"}
+                </label>
+                <select
+                  id="planner-provider"
+                  bind:value={settings.llm.assistant_planner_provider}
+                  class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+                >
+                  <option value="">{$t.dashboard?.use_default || "Use Default"}</option>
+                  {#each settings.llm_providers || [] as provider}
+                    <option value={provider.id}>
+                      {provider.name} ({provider.default_model})
+                    </option>
+                  {/each}
+                </select>
+              </div>
+
+              <div>
+                <label for="planner-model" class="block text-sm font-medium text-gray-700">
+                  {$t.settings?.llm_chatbot_model || "Chatbot Model Override"}
+                </label>
+                <input
+                  id="planner-model"
+                  type="text"
+                  bind:value={settings.llm.assistant_planner_model}
+                  placeholder={$t.settings?.llm_chatbot_model_placeholder || "Optional, e.g. gpt-4.1-mini"}
+                  class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+                />
+              </div>
+            </div>
+          </div>
+
+          <div class="mt-6 rounded-lg border border-gray-200 bg-white p-4">
+            <h3 class="text-base font-semibold text-gray-900">
+              {$t.settings?.llm_provider_bindings_title || "Provider Bindings by Task"}
+            </h3>
+            <p class="mt-1 text-sm text-gray-600">
+              {$t.settings?.llm_provider_bindings_description ||
+                "Select which provider is used by default for each LLM task."}
+            </p>
+
+            <div class="mt-4 grid grid-cols-1 gap-4 md:grid-cols-2">
+              <div>
+                <label for="binding-dashboard-validation" class="block text-sm font-medium text-gray-700">
+                  {$t.settings?.llm_binding_dashboard_validation || "Dashboard Validation Provider"}
+                </label>
+                <select
+                  id="binding-dashboard-validation"
+                  bind:value={settings.llm.provider_bindings.dashboard_validation}
+                  class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+                >
+                  <option value="">{$t.dashboard?.use_default || "Use Default"}</option>
+                  {#each settings.llm_providers || [] as provider}
+                    <option value={provider.id}>
+                      {provider.name} ({provider.default_model})
+                    </option>
+                  {/each}
+                </select>
+                {#if !isDashboardValidationBindingValid()}
+                  <p class="mt-1 text-xs text-amber-700">
+                    {$t.settings?.llm_multimodal_warning ||
+                      "Dashboard validation requires a multimodal model (image input)."}
+                  </p>
+                {/if}
+              </div>
+
+              <div>
+                <label for="binding-documentation" class="block text-sm font-medium text-gray-700">
+                  {$t.settings?.llm_binding_documentation || "Documentation Provider"}
+                </label>
+                <select
+                  id="binding-documentation"
+                  bind:value={settings.llm.provider_bindings.documentation}
+                  class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+                >
+                  <option value="">{$t.dashboard?.use_default || "Use Default"}</option>
+                  {#each settings.llm_providers || [] as provider}
+                    <option value={provider.id}>
+                      {provider.name} ({provider.default_model})
+                    </option>
+                  {/each}
+                </select>
+              </div>
+
+              <div class="md:col-span-2">
+                <label for="binding-git-commit" class="block text-sm font-medium text-gray-700">
+                  {$t.settings?.llm_binding_git_commit || "Git Commit Provider"}
+                </label>
+                <select
+                  id="binding-git-commit"
+                  bind:value={settings.llm.provider_bindings.git_commit}
+                  class="mt-1 block w-full rounded-md border border-gray-300 p-2 text-sm"
+                >
+                  <option value="">{$t.dashboard?.use_default || "Use Default"}</option>
+                  {#each settings.llm_providers || [] as provider}
+                    <option value={provider.id}>
+                      {provider.name} ({provider.default_model})
+                    </option>
+                  {/each}
+                </select>
+              </div>
+            </div>
+          </div>
+
           <div class="mt-6 rounded-lg border border-gray-200 bg-gray-50 p-4">
             <h3 class="text-base font-semibold text-gray-900">
               {$t.settings?.llm_prompts_title || "LLM Prompt Templates"}