add homelab review skill

ai/skills/homelab-infrastructure-review/references/homelable-backend-api.md

@@ -0,0 +1,46 @@
+# Homelable Backend API Reference
+
+Direct REST API access to Pouzor/homelable visualizer backend on port 9445. Bypasses the complex and slow Server-Sent Events (SSE) handshake required on port 8001.
+
+## Authentication
+The backend API requires an unauthenticated sub-app service key. Read this key dynamically from:
+`/srv/configs/docker_compose/homelabel/.env` -> `MCP_SERVICE_KEY`
+
+Inject it into HTTP request headers:
+`X-MCP-Service-Key: <MCP_SERVICE_KEY>`
+
+## Endpoints
+
+### 1. Health Check
+`GET http://localhost:9445/api/v1/health`
+Returns `{"status": "ok"}` on success (HTTP 200).
+
+### 2. Retrieve Canvas Nodes
+`GET http://localhost:9445/api/v1/nodes`
+Returns a JSON array of active canvas nodes.
+
+Example Node Object:
+```json
+{
+  "type": "computer",
+  "label": "Game Pc",
+  "hostname": "DESKTOP-BRHGMFT",
+  "ip": "10.0.0.109",
+  "status": "online",
+  "services": [
+    {
+      "port": 11434,
+      "protocol": "tcp",
+      "service_name": "Ollama"
+    }
+  ],
+  "id": "3fc16e75-9418-41b1-b4a2-d3859c9ce431"
+}
+```
+
+### 3. Retrieve Canvas Edges
+`GET http://localhost:9445/api/v1/edges`
+Returns active connection edges between nodes.
+
+### 4. Trigger Network Scan
+`POST http://localhost:9445/api/v1/scan/trigger`