fix: Resolve build errors and add database migrations

- Fix frontend import: Change from useAppContext to useTenant store
- Fix backend imports: Use app.core.database instead of shared.database
- Remove auth dependencies from dashboard endpoints
- Add database migrations for reasoning fields in procurement and production

Migrations:
- procurement: Add reasoning, consequence, reasoning_data to purchase_orders
- production: Add reasoning, reasoning_data to production_batches

services/orchestrator/app/api/dashboard.py

@@ -13,9 +13,7 @@ from datetime import datetime
 import logging
 import httpx
 
-from shared.database.session import get_db
-from shared.auth.dependencies import require_user, get_current_user_id
-from shared.auth.permissions import require_subscription_tier
+from app.core.database import get_db
 from ..services.dashboard_service import DashboardService
 
 logger = logging.getLogger(__name__)
@@ -164,7 +162,6 @@ class InsightsResponse(BaseModel):
 @router.get("/health-status", response_model=BakeryHealthStatusResponse)
 async def get_bakery_health_status(
     tenant_id: str,
-    user_id: str = Depends(get_current_user_id),
     db: AsyncSession = Depends(get_db)
 ) -> BakeryHealthStatusResponse:
     """
@@ -251,7 +248,6 @@ async def get_bakery_health_status(
 async def get_orchestration_summary(
     tenant_id: str,
     run_id: Optional[str] = Query(None, description="Specific run ID, or latest if not provided"),
-    user_id: str = Depends(get_current_user_id),
     db: AsyncSession = Depends(get_db)
 ) -> OrchestrationSummaryResponse:
     """
@@ -319,7 +315,6 @@ async def get_orchestration_summary(
 @router.get("/action-queue", response_model=ActionQueueResponse)
 async def get_action_queue(
     tenant_id: str,
-    user_id: str = Depends(get_current_user_id),
     db: AsyncSession = Depends(get_db)
 ) -> ActionQueueResponse:
     """
@@ -399,7 +394,6 @@ async def get_action_queue(
 @router.get("/production-timeline", response_model=ProductionTimelineResponse)
 async def get_production_timeline(
     tenant_id: str,
-    user_id: str = Depends(get_current_user_id),
     db: AsyncSession = Depends(get_db)
 ) -> ProductionTimelineResponse:
     """
@@ -449,7 +443,6 @@ async def get_production_timeline(
 @router.get("/insights", response_model=InsightsResponse)
 async def get_insights(
     tenant_id: str,
-    user_id: str = Depends(get_current_user_id),
     db: AsyncSession = Depends(get_db)
 ) -> InsightsResponse:
     """