Kijiji zero-result queries (e.g. 'macbook air m1 apple silicon') are
confusing because the failure mode is non-obvious. Surface the root
cause everywhere the caller can see it:
- MCP tool description warns about AND-matching and gives a concrete
before/after example
- API 404 body includes the actionable hint via emptySearchResponse(hint)
- Core scraper logs the built URL and tip on page-1 zero results
- MCP handler unwraps the API message field so the hint reaches the LLM
Tightens the type assertion for the `unstableFilter` schema property in tests to ensure correct structural checking of its `type` and `description` fields.
Add optional cookie parameter to bypass bot detection (403 errors).
Cookies can be provided via parameter, KIJIJI_COOKIE env var, or
cookies/kijiji.json file. Supports both JSON array and string formats.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
