Fix seed_database call in factory reset - pass fresh db session

backend/app/routes.py

@@ -6472,14 +6472,19 @@ def factory_reset(
 
         # Step 3: Reinitialize database schema
         logger.info("Reinitializing database schema...")
-        from .database import init_db
+        from .database import init_db, SessionLocal
         init_db()
         results["database_reinitialized"] = True
 
-        # Step 4: Re-seed with default data
+        # Step 4: Re-seed with default data (need fresh session after schema recreate)
         logger.info("Seeding database with defaults...")
         from .seed import seed_database
-        seed_database()
+        fresh_db = SessionLocal()
+        try:
+            seed_database(fresh_db)
+            fresh_db.commit()
+        finally:
+            fresh_db.close()
         results["seeded"] = True
 
         logger.warning(f"Factory reset completed by {current_user.username}")