* Prefer model-provided web search result count over admin default
Update `search_web` to prioritize the model-provided `count` parameter before falling back to the admin-configured `WEB_SEARCH_RESULT_COUNT`, and finally defaulting to 5.
Changes:
- Set `count` default to `None` instead of `5`.
- Adjust fallback order to: model-provided `count` → admin-configured value → `5`.
- Update comment to reflect the new precedence logic.
This ensures explicit model requests for result count are respected while preserving sensible defaults.
* Enforce maximum web search result count from config
Update `search_web` to cap the model-provided `count` parameter at the admin-configured `WEB_SEARCH_RESULT_COUNT` to prevent excessive result requests.
Changes:
- Set default `count` parameter to `5`.
- Replace fallback logic with enforcement logic that limits `count` to the configured maximum.
- Update comment to reflect that the result count is now capped to prevent abuse.
This ensures web search requests cannot exceed the configured limit while maintaining a sensible default.
Steve-Li-1998
7ea1e9cbd0