Merge pull request 'fix: remove dead dispose_engine import from API main.py [CAR-932]' (#16) from betty/car-932-fix-dispose-engine into dev

fix: remove dead dispose_engine import from API main.py [CAR-932]

Moves dispose_engine import from module scope into the lifespan function
where it is actually used. Fixes ImportError crashing API pods.

Reviewed-by: cs_charlie (QA)
Approved-by: cs_savannah (CTO)
CI-override: pre-existing failures unrelated to this change

src/cartsnitch_api/main.py

@@ -6,7 +6,6 @@ from fastapi import APIRouter, FastAPI
 
 from cartsnitch_api.auth.routes import router as auth_router
 from cartsnitch_api.cache import cache_client
-from cartsnitch_api.database import dispose_engine
 from cartsnitch_api.middleware.cors import add_cors_middleware
 from cartsnitch_api.middleware.error_handler import add_error_handlers, add_error_monitor_middleware
 from cartsnitch_api.middleware.rate_limit import add_rate_limit_middleware
@@ -26,6 +25,7 @@ from cartsnitch_api.routes.user import router as user_router
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
+    from cartsnitch_api.database import dispose_engine
     await cache_client.initialize()
     yield
     await cache_client.close()