Lack of error handling and response clarity in /get-new-stickers endpoint

[akshathav25]

As a new contributor, I noticed that the backend currently does not explicitly handle
failure scenarios such as image download errors, invalid image URLs, or empty results.

The API always returns a success response even when:

• Image downloads fail
• Processed sticker list is empty
• External requests return unexpected responses

It would be helpful to:

• Add basic error handling for image downloads
• Return clearer API responses or status codes when no stickers are generated
• Document expected success vs failure responses for the client

This would improve robustness and make client-side handling easier.

[CodeFun1001]

I'm Beejasani, a SWOC 2026 Contributor. I would like to work on this issue. Please assign this issue to me.

[Pippiblip]

hey can you please assign this issue to me im a SWOC contributor