Background Job Integration with Celery

[nensii21]

Description

Celery and Redis are configured but currently unused.

Move long-running tasks into background jobs.

Candidate Tasks
notifications
email sending
activity generation
future recommendation computation

Acceptance Criteria

Worker configured
Tasks created
.delay() used
Documentation updated

[bhavana-career]

Hi @nensii21, I'd like to work on this issue. I plan to move the identified long-running tasks (notifications, email sending, activity generation, and future recommendation computation) into Celery background jobs, use .delay() where appropriate, and update the documentation. Could you please assign this issue to me? Thank you!

[bhavana-career]

Hi! While implementing Issue #203 (Celery background tasks), I ran into something that may block the work.

I noticed that several routers and services import schema modules such as app.schemas.notification, app.schemas.follower, app.schemas.application, app.schemas.activity, and others. However, on my branch I can only find app/schemas/auth.py and app/schemas/user.py.

I checked the Git history as well and couldn't find any commits where those missing schema files existed, so I'm not sure if I'm missing another branch, a setup/code-generation step, or if the repository is currently incomplete.

Because of this, I can't fully start the backend or test the Celery implementation end-to-end.

Is there another branch or missing commit that contains these schema modules, or should they be implemented first?

If they're intentionally missing, I'd be happy to implement them myself in a separate PR before continuing with Issue #203, if that's the preferred approach.