fix: Add missing columns to daily_workflow_plans table

- Added generation_mode column (VARCHAR, default: 'llm_generation')
- Added committee_agent_count column (INTEGER, default: 0)
- Added fallback_used column (BOOLEAN, default: 0)

Also fixed:
- Imported daily_workflow_models in services/database.py to ensure models are registered
- Added _create_daily_workflow_tables() to database setup
- Created migration script to add columns to 35 existing databases
- Fixed WorkflowError type in frontend to use constructor for proper 'name' property

This resolves the 'no such column' sqlite3 errors when accessing the today-workflow API.

backend/alwrity_utils/database_setup.py

@@ -36,6 +36,7 @@ class DatabaseSetup:
             self._create_subscription_tables()
             self._create_persona_tables()
             self._create_onboarding_tables()
+            self._create_daily_workflow_tables()
             
             if verbose:
                 print("✅ Essential database tables created")
@@ -114,6 +115,22 @@ class DatabaseSetup:
                 print(f"   ⚠️  Onboarding tables failed: {e}")
             return True  # Non-critical
     
+    def _create_daily_workflow_tables(self) -> bool:
+        """Create daily workflow tables."""
+        import os
+        verbose = os.getenv("ALWRITY_VERBOSE", "false").lower() == "true"
+        
+        try:
+            from models.enhanced_strategy_models import Base as StrategyBase
+            StrategyBase.metadata.create_all(bind=engine)
+            if verbose:
+                print("   ✅ Daily workflow tables created")
+            return True
+        except Exception as e:
+            if verbose:
+                print(f"   ⚠️  Daily workflow tables failed: {e}")
+            return True  # Non-critical
+    
     def verify_tables(self) -> bool:
         """Verify that essential tables exist."""
         import os