Reverts the "perf(news): use direct API endpoint for get_item()" change
from commit 92c4bf3 which incorrectly assumed GET /items/{itemId} exists.
The News API (v1-2, v1-3, v2) does not provide a direct endpoint to
retrieve individual items. The only /items/{itemId} routes are POST
operations for marking items read/unread/starred.
Changes:
- Restore original get_item() implementation that fetches all items
and filters in Python
- Update exception from HTTPStatusError to ValueError
- Restore documentation explaining API limitation
- Update unit tests to mock get_items() instead of _make_request()
- Add test for ValueError when item not found
Fixes vector processor 405 errors when indexing news items.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Chris Coutinho
d61e33113c