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- Remove outdated SQL schema and seed files, transitioning to a more dynamic migration approach.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/seed_model_resources.sql

@@ -1,4 +1,4 @@
--- 模型资源种子数据。依赖 seed_interface_definitions.sql。
+-- 模型资源种子数据。依赖 interface_catalog.py 已同步到 interface_definitions。
 
 INSERT INTO model_resources
   (id, name, capability, interface_type, values, secrets, support_image_input, enabled, is_default)