Refactor code for improved readability and consistency

- Cleaned up whitespace and formatting across multiple files for better readability.

app/database_init.py

@@ -8,10 +8,10 @@ def init_database():
     """Initialize database tables and seed with default data."""
     # Create all tables
     db.create_all()
-    
+
     # Seed plans if they don't exist
     seed_plans()
-    
+
     # Migrate existing users to have plans
     migrate_users_to_plans()
 
@@ -21,7 +21,7 @@ def seed_plans():
     # Check if plans already exist
     if Plan.query.count() > 0:
         return
-    
+
     # Create default plans
     plans_data = [
         {
@@ -46,11 +46,11 @@ def seed_plans():
             "max_credits": 300,
         },
     ]
-    
+
     for plan_data in plans_data:
         plan = Plan(**plan_data)
         db.session.add(plan)
-    
+
     db.session.commit()
     print(f"Seeded {len(plans_data)} plans into database")
 
@@ -58,11 +58,11 @@ def seed_plans():
 def migrate_users_to_plans():
     """Assign plans to existing users who don't have one."""
     from app.models.user import User
-    
+
     try:
         # Find users without plans
         users_without_plans = User.query.filter(User.plan_id.is_(None)).all()
-        
+
         # Find users with plans but NULL credits (only if credits column exists)
         # Note: We only migrate users with NULL credits, not 0 credits
         # 0 credits means they spent them, NULL means they never got assigned
@@ -73,19 +73,19 @@ def migrate_users_to_plans():
         except Exception:
             # Credits column doesn't exist yet, will be handled by create_all
             users_without_credits = []
-        
+
         if not users_without_plans and not users_without_credits:
             return
-        
+
         # Get default and pro plans
         default_plan = Plan.get_default_plan()
         pro_plan = Plan.get_pro_plan()
-        
+
         # Get the first user (admin) from all users ordered by ID
         first_user = User.query.order_by(User.id).first()
-        
+
         updated_count = 0
-        
+
         # Assign plans to users without plans
         for user in users_without_plans:
             # First user gets pro plan, others get free plan
@@ -104,17 +104,19 @@ def migrate_users_to_plans():
                 except Exception:
                     pass
             updated_count += 1
-        
+
         # Assign credits to users with plans but no credits
         for user in users_without_credits:
             user.credits = user.plan.credits
             updated_count += 1
-        
+
         if updated_count > 0:
             db.session.commit()
-            print(f"Updated {updated_count} existing users with plans and credits")
-            
+            print(
+                f"Updated {updated_count} existing users with plans and credits"
+            )
+
     except Exception:
         # If there's any error (like missing columns), just skip migration
         # The database will be properly created by create_all()
-        pass
+        pass