fix: use lifespan context manager in Starlette and FastAPI

[cofin]

Modifes the Starlette and FastAPI integrations to use the lifespan context manager instead of the startup`shutdown` hooks. If the application already has a lifespan set, it is wrapped so that both execute.

[cofin]

Closes #367

[PokkaKiyo]

@cofin If you don't mind me adding, the changes you made to AdvancedAlchemy seem like it would run each config's on_startup/on_shutdown twice if the user does not define a custom lifespan, but only once if the user does define lifespan.

That's probably fine for create_all and engine.dispose, but maybe the add_event_handler functions in the config classes should be removed if this isn't intended?

Also the outer shutdown doesn't run when hit with an exception 😅

[cofin]

@cofin If you don't mind me adding, the changes you made to AdvancedAlchemy seem like it would run each config's on_startup/on_shutdown twice if the user does not define a custom lifespan, but only once if the user does define lifespan.

That's probably fine for create_all and engine.dispose, but maybe the add_event_handler functions in the config classes should be removed if this isn't intended?

Also the outer shutdown doesn't run when hit with an exception 😅

Hah. Is it obvious I don't use FastAPI daily? :)

[cofin]

@cofin If you don't mind me adding, the changes you made to AdvancedAlchemy seem like it would run each config's on_startup/on_shutdown twice if the user does not define a custom lifespan, but only once if the user does define lifespan.

That's probably fine for create_all and engine.dispose, but maybe the add_event_handler functions in the config classes should be removed if this isn't intended?

Also the outer shutdown doesn't run when hit with an exception 😅

Your suggestions were spot on. I think I've finally addressed all of the issues on this one. Thanks again.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Documentation preview will be available shortly at https://litestar-org.github.io/advanced-alchemy-docs-preview/368

[PokkaKiyo]

Thank you!