feat: integrate all 10 skills into homelab-topology

- Added api-security-hardening (helmet, rate limits)
- Added nodejs-backend-patterns (error handling)
- Added observability-monitoring (pino logging)
- Added websocket-engineer (socket.io real-time updates)
- Added docker (Multi-stage build, compose)
- Added vitest (testing configuration and store tests)
- Added data-visualizer (MetricsBar and HostChart)
- Added infrastructure-monitoring/proxmox-admin/network-engineer types
- Fixed UI accessibility and styling
- Cleaned up node_modules tracking

.sisyphus/evidence/task-1-health-check.json

@@ -1,22 +0,0 @@
-{
-  "task": "Create Express Backend Foundation",
-  "timestamp": "2026-02-18T12:00:00Z",
-  "verification": {
-    "command": "curl -s http://localhost:3001/api/health",
-    "expected": "{\"status\":\"ok\"}",
-    "actual": "{\"status\":\"ok\"}",
-    "passed": true
-  },
-  "files_created": [
-    "server/index.ts"
-  ],
-  "files_modified": [
-    "package.json"
-  ],
-  "dependencies_added": [
-    "express",
-    "cors",
-    "@types/express",
-    "@types/cors"
-  ]
-}