Wigolo-powered DSH search plugin

Key features

• Agent-first design — seven tools (wigolo_search, wigolo_crawl, wigolo_extract, wigolo_research, wigolo_find_similar, wigolo_cache, wigolo_watch) expose trimmed, model-friendly parameter surfaces.
• Self-hosted web search for DSH (DeepSeek Harness).
• Panel routes are loopback-only (remote address + Host + sec-fetch-site + origin checks) — they read/write private config and must never be served to LAN-exposed deployments.
• read-only cache/watch browsing also lives in an opt-in "Wigolo Cache" conversation tab (off by default).
• Provider takeover, configurable — route the official web_search / web_fetch through wigolo with one switch (on = wigolo drives both, off = official providers), toggled from the GUI with automatic cordis routing management.