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

vitest.config.ts

@@ -0,0 +1,19 @@
+import { defineConfig } from 'vitest/config';
+import { resolve } from 'path';
+
+export default defineConfig({
+    test: {
+        environment: 'jsdom',
+        globals: true,
+        include: ['**/*.test.{ts,tsx}'],
+        exclude: ['**/node_modules/**', '**/e2e/**'],
+        alias: {
+            '@': resolve(__dirname, './src'),
+        },
+        coverage: {
+            provider: 'v8',
+            reporter: ['text', 'html', 'json'],
+            exclude: ['**/*.test.ts', '**/__mocks__/**', '**/node_modules/**'],
+        },
+    },
+});