fa3e902ee8
Bring the Keenable search provider in line with the established multi-file provider pattern so it surfaces everywhere the others do: - settings_api.py: register in the web-search provider options so it appears in the WebUI settings dropdown (credential: api_key, optional). - WebUI provider-brand: add keenable brand entry + brand test. - docs/configuration.md: provider table row + config example. - Harden _search_keenable: honor config.timeout and return explicit messages on HTTP status errors (429 / other), matching peer providers. - Add env-key and HTTP-error tests; add the websocket settings whitelist assertion. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>