Add database migration step to Docker entrypoint

[artugro]

Summary

This change adds automatic database migration execution to the Docker container startup process, ensuring the database schema is up-to-date before the application starts.

Key Changes

• Added alembic upgrade head command to the Docker entrypoint script
• Migrations now run automatically during container initialization, before the FastAPI application starts

Implementation Details

The migration command is executed after Redis initialization but before the main application process, ensuring:

• The database is properly migrated to the latest schema version
• Any pending migrations are applied automatically on container startup
• The application only starts after migrations complete successfully

https://claude.ai/code/session_01EkgZTPPvHWLmGuqDc5LrXT