feat(console): CHV production-grade frontend — worker availability, attachment guard, queue hint, build:console fix, vitest

cloud/console-react/package.json

@@ -7,7 +7,8 @@
     "build": "tsc -b && vite build",
     "dev": "vite",
     "preview": "vite preview",
-    "build:console": "npm run build && node scripts/copy-build.mjs"
+    "build:console": "npm run build && node scripts/copy-build.mjs",
+    "test": "vitest run"
   },
   "dependencies": {
     "react": "^19.1.0",
@@ -19,6 +20,7 @@
     "@vitejs/plugin-react": "^4.4.1",
     "typescript": "~5.8.3",
     "vite": "^6.3.5",
-    "vite-plugin-singlefile": "^2.2.0"
+    "vite-plugin-singlefile": "^2.2.0",
+    "vitest": "^5.0.5"
   }
 }