creaded correct docker image creation file

docker-entrypoint.sh

@@ -19,16 +19,24 @@ app = create_app()
 with app.app_context():
     db.create_all()
     
-    # Create admin user
-    admin = User.query.filter_by(username='admin').first()
+    # Create or update admin user from environment variables
+    import os
+    admin_username = os.getenv('ADMIN_USERNAME', 'admin')
+    admin_password = os.getenv('ADMIN_PASSWORD', 'admin123')
+    
+    admin = User.query.filter_by(username=admin_username).first()
     if not admin:
-        hashed = bcrypt.generate_password_hash('admin123').decode('utf-8')
-        admin = User(username='admin', password=hashed, role='admin')
+        hashed = bcrypt.generate_password_hash(admin_password).decode('utf-8')
+        admin = User(username=admin_username, password=hashed, role='admin')
         db.session.add(admin)
         db.session.commit()
-        print('✅ Admin user created (admin/admin123)')
+        print(f'✅ Admin user created ({admin_username})')
     else:
-        print('✅ Admin user already exists')
+        # Update password if it exists
+        hashed = bcrypt.generate_password_hash(admin_password).decode('utf-8')
+        admin.password = hashed
+        db.session.commit()
+        print(f'✅ Admin user password updated ({admin_username})')
 "
     echo "Database initialized!"
 fi