Update init_db.py

init_db.py

@@ -1,4 +1,4 @@
-from app import app, db
+from app import app, db, User
 from flask_migrate import upgrade
 
 def init_db():
@@ -8,5 +8,14 @@ def init_db():
         # Run any pending migrations
         upgrade()
         
+        # Create default admin user if it doesn't exist
+        admin = User.query.filter_by(username='admin').first()
+        if not admin:
+            admin = User(username='admin')
+            admin.set_password('admin123')  # You should change this password after first login
+            db.session.add(admin)
+            db.session.commit()
+            print("Default admin user created!")
+
 if __name__ == '__main__':
     init_db()