feat: complete deploy demo with React UI

Backend:
- Spring Boot 3.4, Java 21, REST API for app lifecycle
- Build pipeline: JAR → Dockerfile → docker build/push → kubectl apply
- In-memory state with K8s reconciliation on startup
- Configurable via env vars

Frontend:
- React 19 + @cameleer/design-system v0.1.26
- Dashboard table with status polling (5s)
- Deploy dialog with drag-and-drop JAR upload
- Resource limit/request configuration
- Environment variable editor
- Build log viewer
- Delete with confirmation dialog

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "cameleer-deploy-demo-ui",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -p tsconfig.app.json --noEmit && vite build",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@cameleer/design-system": "^0.1.26",
+    "@tanstack/react-query": "^5.90.21",
+    "lucide-react": "^1.7.0",
+    "react": "^19.2.4",
+    "react-dom": "^19.2.4"
+  },
+  "devDependencies": {
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.0",
+    "typescript": "~5.9.3",
+    "vite": "^8.0.0"
+  }
+}