test(frontend): cover aborted API requests

[utksh1]

Summary

Add tests for an aborted request so callers receive the expected error shape and no stale response updates state.

Scope

• Suggested file: frontend/src/api.ts
• Add or extend a focused frontend unit test.
• Do not bundle unrelated visual or production changes.

Acceptance criteria

• The behavior is covered with a deterministic test.
• The user-visible or accessibility outcome is asserted.
• Existing tests remain stable.
• The focused frontend test passes.

Verification

Run the affected Vitest file from frontend/.

[soujanya-07-coder]

Hi @utksh1,

I'd like to work on this issue as part of GSSoC'26.

I'll add or extend the frontend unit test for the aborted request scenario, ensuring the expected error shape is returned, no stale response updates the state, and the acceptance criteria are covered while keeping the changes focused.

Could you please assign this issue to me?

Thank you!