Implement Alembic for database migrations and update FastAPI initialization

- Integrate Alembic for managing database schema migrations, replacing the previous SQL schema management.
- Update the FastAPI application to synchronize interface definitions at startup.
- Modify the Docker Compose command to run Alembic migrations before starting the API.
- Enhance the Makefile with new commands for database migration and revision management.
- Remove outdated SQL schema and seed files, transitioning to a more dynamic migration approach.
- Add initial migration scripts and configuration for Alembic, ensuring a structured database evolution.

backend/db/sync_interface_definitions.py

@@ -0,0 +1,15 @@
+"""CLI entry for syncing built-in interface definitions."""
+
+from __future__ import annotations
+
+import asyncio
+
+from db.session import sync_interface_definitions
+
+
+def main() -> None:
+    asyncio.run(sync_interface_definitions())
+
+
+if __name__ == "__main__":
+    main()