Improve local service checks and web search tooling

docs/api/PROTOCOL.md

@@ -384,7 +384,7 @@ Return status for user-level local LLM backend daemons (for example `ollama.serv
 
 #### `system.dockerDependencies`
 
-Return status for docker-compose managed dependencies discovered from `docker-compose.yml` (excluding Flynn's own `flynn` service). Includes profile-scoped services (for example `whisper-server`, `brave-search`) when profiles are defined.
+Return status for docker-compose managed dependencies discovered from `docker-compose.yml` (excluding Flynn's own `flynn` service). Includes profile-scoped services (for example `whisper-server`, `brave-search`, `searxng`) when profiles are defined.
 
 **Request:**
 ```json
@@ -421,6 +421,17 @@ Return status for docker-compose managed dependencies discovered from `docker-co
         "statusText": "Up 2 minutes",
         "containerName": "brave-search",
         "availableActions": ["restart", "stop", "update"]
+      },
+      {
+        "id": "searxng",
+        "name": "SearXNG",
+        "service": "searxng",
+        "configured": true,
+        "state": "running",
+        "health": "none",
+        "statusText": "Up 2 minutes",
+        "containerName": "searxng",
+        "availableActions": ["restart", "stop", "update"]
       }
     ]
   }

docs/plans/state.json

@@ -3,6 +3,27 @@
   "updated_at": "2026-02-23",
   "description": "Tracks the status of all Flynn plans and implementation phases",
   "plans": {
+    "local-searxng-compose-with-fallback-endpoint": {
+      "status": "completed",
+      "date": "2026-02-23",
+      "updated": "2026-02-23",
+      "summary": "Added an optional local `searxng` Docker Compose dependency (search profile) and extended `web_search` config/tooling with `fallback_endpoint` so Flynn can query a local SearXNG first and automatically fail over to a homelab backup endpoint when the primary is unavailable.",
+      "files_modified": [
+        "docker-compose.yml",
+        "src/tools/builtin/web-search.ts",
+        "src/tools/builtin/web-search.test.ts",
+        "src/config/schema.ts",
+        "src/daemon/tools.ts",
+        "src/gateway/handlers/services.ts",
+        "src/gateway/handlers/dockerDependencies.ts",
+        "src/gateway/handlers/dockerDependencies.test.ts",
+        "README.md",
+        "config/default.yaml",
+        "docs/api/PROTOCOL.md",
+        "docs/plans/state.json"
+      ],
+      "test_status": "pnpm test:run src/tools/builtin/web-search.test.ts src/gateway/handlers/services.test.ts src/config/schema.test.ts src/gateway/handlers/dockerDependencies.test.ts + pnpm typecheck passing"
+    },
     "dashboard-observability-graphs-and-service-logs": {
       "status": "completed",
       "date": "2026-02-23",