fix: address review feedback for ProofWidgets4 pin update

- Fix docstring: says "matches exactly" instead of ">="
- Increase tag search limit from 10 to 20
- Add 30s timeout to HTTP requests
- Scope regex to ProofWidgets4 dependency line only
- Simplify API base URL construction

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
1 file changed