Merge pull request 'CUB-126: Update Control Center deployment for Go + React' (#40) from agent/pip/CUB-126-deployment-go-react into dev

- Updated docker-compose.yml for Go + React + PostgreSQL
- Go backend multi-stage Dockerfile (already existed)
- React frontend multi-stage Dockerfile with nginx SPA config (already existed)
- Kiosk start script and systemd unit
- Deployment README
- .env.example for environment variables

.env.example

@@ -0,0 +1,45 @@
+# Control Center - Environment Variables
+# ======================================
+
+# ── Backend Variables ───────────────────────────────────────────────────
+# Server configuration
+PORT=8080
+CORS_ORIGIN=http://localhost:3000
+LOG_LEVEL=info
+ENVIRONMENT=development
+
+# Database connection (PostgreSQL DSN)
+# Format: postgresql://user:password@host:port/database?sslmode=disable
+DATABASE_URL=postgresql://controlcenter:controlcenter@localhost:5432/controlcenter?sslmode=disable
+
+# Gateway (OpenClaw) connection
+# URL to the OpenClaw gateway API for polling agent states
+GATEWAY_URL=http://localhost:18789/api/agents
+# Polling interval for agent state updates
+GATEWAY_POLL_INTERVAL=5s
+
+# ── Frontend Variables (via Vite) ───────────────────────────────────────
+# The Vite config exposes these as import.meta.env.VITE_*
+# Set via environment variable when building: VITE_API_URL
+# VITE_API_URL=http://localhost:8080
+
+# ── Docker Compose Specific ─────────────────────────────────────────────
+# When using docker-compose, these are set in the services section
+# See docker-compose.yml for service-specific environment variables
+
+# ── Database Configuration ─────────────────────────────────────────────
+# Set in the db service environment section of docker-compose.yml
+# POSTGRES_USER=controlcenter
+# POSTGRES_PASSWORD=controlcenter
+# POSTGRES_DB=controlcenter
+
+# ── Development Notes ───────────────────────────────────────────────────
+# For local development without Docker:
+# 1. Start PostgreSQL locally
+# 2. Run: go run ./cmd/server/main.go
+# 3. Run: npm run dev in frontend/
+#
+# For Docker deployment:
+# 1. Copy .env.example to .env (backend only)
+# 2. Run: docker compose up -d
+# 3. Access frontend at http://localhost:3000

README-deployment.md

@@ -0,0 +1,268 @@
+# Control Center Deployment Guide
+
+This document covers the Docker Compose deployment and kiosk configuration for the Control Center Go + React application.
+
+## Quick Start
+
+```bash
+# Start all services (backend, frontend, database)
+docker compose up -d
+
+# View logs
+docker compose logs -f
+
+# Stop all services
+docker compose down
+
+# Stop and remove volumes (database data)
+docker compose down -v
+```
+
+## Architecture
+
+```
+┌─────────────────┐
+│   Frontend      │  Port 3000 (host) → 80 (container)
+│   React + nginx │  Serves SPA, proxies /api/ to backend
+└────────┬────────┘
+         │
+         │ HTTP
+         │
+┌────────▼────────┐
+│   Backend       │  Port 8080 (host) → 8080 (container)
+│   Go HTTP API   │  PostgreSQL-backed REST API
+└────────┬────────┘
+         │
+         │ PostgreSQL
+         │
+┌────────▼────────┐
+│   PostgreSQL    │  Port 5432 (internal only)
+│   Database      │  Persistent volume at /var/lib/postgresql/data
+└─────────────────┘
+```
+
+## Services
+
+### Backend (`go-backend`)
+
+- **Image**: Custom `alpine:latest` with Go binary
+- **Port**: 8080
+- **Build**: Multi-stage from `go-backend/Dockerfile`
+- **Environment Variables**:
+  - `PORT` (default: 8080)
+  - `DATABASE_URL` (PostgreSQL DSN)
+  - `CORS_ORIGIN` (default: `*`)
+  - `LOG_LEVEL` (default: `info`)
+  - `ENVIRONMENT` (default: `development`)
+  - `GATEWAY_URL` (OpenClaw gateway endpoint)
+
+### Frontend (`frontend`)
+
+- **Image**: `nginx:1.27-alpine`
+- **Port**: 80 (internal) → 3000 (host)
+- **Build**: Multi-stage from `frontend/Dockerfile`
+  - Node 22 for build
+  - Nginx 1.27 for serving
+- **Config**: Custom nginx config in `frontend/nginx.conf`
+- **Environment Variables**:
+  - `VITE_API_URL` (passed at build time via Vite config)
+
+### Database (`db`)
+
+- **Image**: `postgres:16-alpine`
+- **Port**: 5432 (internal only)
+- **Volume**: `postgres-data:/var/lib/postgresql/data`
+- **Environment Variables**:
+  - `POSTGRES_USER` (default: `controlcenter`)
+  - `POSTGRES_PASSWORD` (default: `controlcenter`)
+  - `POSTGRES_DB` (default: `controlcenter`)
+
+## Kiosk Mode
+
+For dedicated display installations (e.g., control center dashboard), Chromium can run in kiosk mode.
+
+### Installation
+
+1. **Install the systemd service** (on Debian/Ubuntu with systemd):
+
+```bash
+sudo cp kiosk/control-center-kiosk.service /etc/systemd/system/
+sudo systemctl daemon-reload
+```
+
+2. **Enable auto-start**:
+
+```bash
+sudo systemctl enable control-center-kiosk
+```
+
+3. **Start the service**:
+
+```bash
+sudo systemctl start control-center-kiosk
+```
+
+4. **Check status and logs**:
+
+```bash
+sudo systemctl status control-center-kiosk
+sudo journalctl -u control-center-kiosk -f
+```
+
+### Manual Launch
+
+```bash
+# From project root
+./kiosk/start-kiosk.sh http://localhost:3000
+```
+
+### Uninstall
+
+```bash
+# Stop and disable service
+sudo systemctl stop control-center-kiosk
+sudo systemctl disable control-center-kiosk
+sudo rm /etc/systemd/system/control-center-kiosk.service
+sudo systemctl daemon-reload
+```
+
+### Kiosk Requirements
+
+- **Browser**: `chromium-browser` (install via `apt-get install chromium`)
+- **Display**: X11 session with `DISPLAY=:0`
+- **User**: Must run as a user with X11 access (typically `overseer`)
+- **Permissions**: Read access to the project directory
+
+## Environment Variables Reference
+
+### Backend (`go-backend/.env`)
+
+```bash
+PORT=8080
+DATABASE_URL=postgresql://controlcenter:controlcenter@localhost:5432/controlcenter?sslmode=disable
+CORS_ORIGIN=*
+LOG_LEVEL=info
+ENVIRONMENT=development
+GATEWAY_URL=http://localhost:18789/api/agents
+GATEWAY_POLL_INTERVAL=5s
+```
+
+### Frontend (build-time)
+
+```bash
+VITE_API_URL=http://localhost:8080
+```
+
+### Docker Compose
+
+Set via `services.<name>.environment` in `docker-compose.yml`:
+
+```yaml
+services:
+  backend:
+    environment:
+      - DATABASE_URL=...
+  frontend:
+    environment:
+      - VITE_API_URL=...
+  db:
+    environment:
+      - POSTGRES_USER=...
+      - POSTGRES_PASSWORD=...
+      - POSTGRES_DB=...
+```
+
+## Development
+
+### Local Development (non-Docker)
+
+```bash
+# Backend
+cd go-backend
+go run ./cmd/server/main.go
+
+# Frontend
+cd frontend
+npm install
+npm run dev
+```
+
+### Database Migrations
+
+```bash
+# If using pgx/migrate or similar
+# The database is created automatically on first connection if it doesn't exist
+```
+
+## Troubleshooting
+
+### Backend won't connect to database
+
+```bash
+# Check database container status
+docker compose ps
+
+# View database logs
+docker compose logs db
+
+# Test database connectivity from backend
+docker compose exec backend ping db
+```
+
+### Frontend can't reach backend
+
+```bash
+# Check network connectivity
+docker compose exec frontend ping backend
+
+# Verify backend is running
+docker compose logs backend
+```
+
+### Kiosk browser won't start
+
+```bash
+# Check Chromium installation
+which chromium-browser
+
+# Check X11 forwarding
+echo $DISPLAY
+
+# Manual launch for debugging
+./kiosk/start-kiosk.sh http://localhost:3000
+```
+
+### Port conflicts
+
+If ports 8080, 3000, or 5432 are already in use, modify `docker-compose.yml`:
+
+```yaml
+services:
+  backend:
+    ports:
+      - "8081:8080"  # Change host port
+  frontend:
+    ports:
+      - "3001:80"    # Change host port
+```
+
+## Production Considerations
+
+1. **HTTPS**: Add a reverse proxy (nginx/Traefik) for SSL termination
+2. **Database security**: Use strong passwords, enable SSL
+3. **CORS**: Restrict `CORS_ORIGIN` to production domain
+4. **Logs**: Configure log aggregation (e.g., ELK, Loki)
+5. **Backups**: Regular PostgreSQL volume backups
+6. **Monitoring**: Add health checks and alerting
+
+## Files
+
+| File/Directory | Purpose |
+|----------------|---------|
+| `docker-compose.yml` | Service definitions and configuration |
+| `.env.example` | Environment variable template |
+| `go-backend/Dockerfile` | Backend build definition |
+| `frontend/Dockerfile` | Frontend build definition |
+| `frontend/nginx.conf` | Nginx config for SPA routing |
+| `kiosk/start-kiosk.sh` | Kiosk browser startup script |
+| `kiosk/control-center-kiosk.service` | Systemd unit for auto-start |

docker-compose.yml

@@ -0,0 +1,72 @@
+# Control Center - Go + React + PostgreSQL Deployment
+# ============================================================
+
+services:
+  # ── Backend Service (Go) ───────────────────────────────────────────────
+  backend:
+    build:
+      context: ./go-backend
+      dockerfile: Dockerfile
+    ports:
+      - "8080:8080"
+    environment:
+      - DATABASE_URL=postgresql://controlcenter:controlcenter@db:5432/controlcenter?sslmode=disable
+      - CORS_ORIGIN=http://localhost:3000
+      - LOG_LEVEL=info
+      - ENVIRONMENT=production
+      - PORT=8080
+      - GATEWAY_URL=http://host.docker.internal:18789/api/agents
+    depends_on:
+      db:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+    networks:
+      - control-center-network
+    restart: unless-stopped
+
+  # ── Frontend Service (React) ───────────────────────────────────────────
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile
+    ports:
+      - "3000:80"
+    depends_on:
+      - backend
+    environment:
+      - VITE_API_URL=http://localhost:8080
+    networks:
+      - control-center-network
+    restart: unless-stopped
+
+  # ── Database Service (PostgreSQL 16) ───────────────────────────────────
+  db:
+    image: postgres:16-alpine
+    container_name: control-center-db
+    environment:
+      - POSTGRES_USER=controlcenter
+      - POSTGRES_PASSWORD=controlcenter
+      - POSTGRES_DB=controlcenter
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U controlcenter -d controlcenter"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+    networks:
+      - control-center-network
+    restart: unless-stopped
+
+networks:
+  control-center-network:
+    driver: bridge
+
+volumes:
+  postgres-data:

frontend-legacy/.gitignore

@@ -0,0 +1,44 @@
+# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
+
+# Compiled output
+/dist
+/tmp
+/out-tsc
+/bazel-out
+
+# Node
+/node_modules
+npm-debug.log
+yarn-error.log
+
+# IDEs and editors
+.idea/
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/mcp.json
+.history/*
+
+# Miscellaneous
+/.angular/cache
+.sass-cache/
+/connect.lock
+/coverage
+/libpeerconnection.log
+testem.log
+/typings
+__screenshots__/
+
+# System files
+.DS_Store
+Thumbs.db

frontend-legacy/Dockerfile

@@ -0,0 +1,38 @@
+# ============================================================
+# Control Center Frontend — Multi-stage Docker Build
+# Angular 21 + nginx for static serving + API proxy
+# ============================================================
+
+# --- Build Stage ---
+FROM node:22-slim AS builder
+
+WORKDIR /app
+
+# Install dependencies first (layer caching)
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Copy source and build production bundle
+COPY . .
+RUN npm run build
+
+# --- Runtime Stage ---
+FROM nginx:1.27-alpine AS runtime
+
+# Remove default nginx config
+RUN rm /etc/nginx/conf.d/default.conf
+
+# Copy custom nginx config
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+# Copy built Angular app from builder stage
+COPY --from=builder /app/dist/frontend/browser /usr/share/nginx/html
+
+# Expose HTTP port
+EXPOSE 80
+
+# Health check — confirm nginx is serving
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget -qO- http://localhost/ || exit 1
+
+CMD ["nginx", "-g", "daemon off;"]

frontend-legacy/README.md

@@ -0,0 +1,59 @@
+# Frontend
+
+This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 21.2.8.
+
+## Development server
+
+To start a local development server, run:
+
+```bash
+ng serve
+```
+
+Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
+
+## Code scaffolding
+
+Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
+
+```bash
+ng generate component component-name
+```
+
+For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
+
+```bash
+ng generate --help
+```
+
+## Building
+
+To build the project run:
+
+```bash
+ng build
+```
+
+This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
+
+## Running unit tests
+
+To execute unit tests with the [Vitest](https://vitest.dev/) test runner, use the following command:
+
+```bash
+ng test
+```
+
+## Running end-to-end tests
+
+For end-to-end (e2e) testing, run:
+
+```bash
+ng e2e
+```
+
+Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
+
+## Additional Resources
+
+For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.

frontend-legacy/nginx.conf

@@ -0,0 +1,54 @@
+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Gzip compression
+    gzip on;
+    gzip_vary on;
+    gzip_proxied any;
+    gzip_comp_level 6;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
+
+    # Cache static assets (Angular uses content hashes)
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # Cache hashed JS/CSS bundles
+    location ~* \.(js|css)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # Proxy API requests to backend
+    location /api/ {
+        proxy_pass http://backend:8080/api/;
+        proxy_http_version 1.1;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Proxy SignalR WebSocket connections to backend
+    location /hubs/ {
+        proxy_pass http://backend:8080/hubs/;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 86400;
+    }
+
+    # Angular SPA — all other routes fall back to index.html
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}

frontend-legacy/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "frontend",
+  "version": "0.0.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "watch": "ng build --watch --configuration development",
+    "test": "ng test"
+  },
+  "private": true,
+  "packageManager": "npm@11.11.0",
+  "dependencies": {
+    "@angular/animations": "^21.2.10",
+    "@angular/cdk": "^21.2.8",
+    "@angular/common": "^21.2.0",
+    "@angular/compiler": "^21.2.0",
+    "@angular/core": "^21.2.0",
+    "@angular/forms": "^21.2.0",
+    "@angular/material": "^21.2.8",
+    "@angular/platform-browser": "^21.2.0",
+    "@angular/router": "^21.2.0",
+    "@microsoft/signalr": "^10.0.0",
+    "rxjs": "~7.8.0",
+    "tslib": "^2.3.0"
+  },
+  "devDependencies": {
+    "@angular/build": "^21.2.8",
+    "@angular/cli": "^21.2.8",
+    "@angular/compiler-cli": "^21.2.0",
+    "prettier": "^3.8.1",
+    "typescript": "~5.9.2"
+  }
+}

frontend-legacy/tsconfig.app.json

@@ -0,0 +1,15 @@
+/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
+/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./out-tsc/app",
+    "types": []
+  },
+  "include": [
+    "src/**/*.ts"
+  ],
+  "exclude": [
+    "src/**/*.spec.ts"
+  ]
+}

frontend-legacy/tsconfig.json

@@ -0,0 +1,30 @@
+/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
+/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "strict": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true,
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "experimentalDecorators": true,
+    "importHelpers": true,
+    "target": "ES2022",
+    "module": "preserve"
+  },
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false,
+    "strictInjectionParameters": true,
+    "strictInputAccessModifiers": true,
+    "strictTemplates": true
+  },
+  "files": [],
+  "references": [
+    {
+      "path": "./tsconfig.app.json"
+    }
+  ]
+}

frontend/.gitignore

@@ -1,44 +1,24 @@
-# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
 
-# Compiled output
-/dist
-/tmp
-/out-tsc
-/bazel-out
+node_modules
+dist
+dist-ssr
+*.local
 
-# Node
-/node_modules
-npm-debug.log
-yarn-error.log
-
-# IDEs and editors
-.idea/
-.project
-.classpath
-.c9/
-*.launch
-.settings/
-*.sublime-workspace
-
-# Visual Studio Code
+# Editor directories and files
 .vscode/*
-!.vscode/settings.json
-!.vscode/tasks.json
-!.vscode/launch.json
 !.vscode/extensions.json
-!.vscode/mcp.json
-.history/*
-
-# Miscellaneous
-/.angular/cache
-.sass-cache/
-/connect.lock
-/coverage
-/libpeerconnection.log
-testem.log
-/typings
-__screenshots__/
-
-# System files
+.idea
 .DS_Store
-Thumbs.db
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

frontend/Dockerfile

@@ -1,6 +1,6 @@
 # ============================================================
 # Control Center Frontend — Multi-stage Docker Build
-# Angular 21 + nginx for static serving + API proxy
+# React 19 + Vite + nginx for static serving + API proxy
 # ============================================================
 
 # --- Build Stage ---
@@ -25,8 +25,8 @@ RUN rm /etc/nginx/conf.d/default.conf
 # Copy custom nginx config
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 
-# Copy built Angular app from builder stage
-COPY --from=builder /app/dist/frontend/browser /usr/share/nginx/html
+# Copy built React app from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
 
 # Expose HTTP port
 EXPOSE 80

frontend/README.md

@@ -1,59 +1,73 @@
-# Frontend
+# React + TypeScript + Vite
 
-This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 21.2.8.
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
 
-## Development server
+Currently, two official plugins are available:
 
-To start a local development server, run:
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Oxc](https://oxc.rs)
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/)
 
-```bash
-ng serve
+## React Compiler
+
+The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
+
+```js
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+
+      // Remove tseslint.configs.recommended and replace with this
+      tseslint.configs.recommendedTypeChecked,
+      // Alternatively, use this for stricter rules
+      tseslint.configs.strictTypeChecked,
+      // Optionally, add this for stylistic rules
+      tseslint.configs.stylisticTypeChecked,
+
+      // Other configs...
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
 ```
 
-Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
+You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
 
-## Code scaffolding
+```js
+// eslint.config.js
+import reactX from 'eslint-plugin-react-x'
+import reactDom from 'eslint-plugin-react-dom'
 
-Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
-
-```bash
-ng generate component component-name
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+      // Enable lint rules for React
+      reactX.configs['recommended-typescript'],
+      // Enable lint rules for React DOM
+      reactDom.configs.recommended,
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
 ```
-
-For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
-
-```bash
-ng generate --help
-```
-
-## Building
-
-To build the project run:
-
-```bash
-ng build
-```
-
-This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
-
-## Running unit tests
-
-To execute unit tests with the [Vitest](https://vitest.dev/) test runner, use the following command:
-
-```bash
-ng test
-```
-
-## Running end-to-end tests
-
-For end-to-end (e2e) testing, run:
-
-```bash
-ng e2e
-```
-
-Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
-
-## Additional Resources
-
-For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.

frontend/eslint.config.js

@@ -0,0 +1,22 @@
+import js from '@eslint/js'
+import globals from 'globals'
+import reactHooks from 'eslint-plugin-react-hooks'
+import reactRefresh from 'eslint-plugin-react-refresh'
+import tseslint from 'typescript-eslint'
+import { defineConfig, globalIgnores } from 'eslint/config'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      js.configs.recommended,
+      tseslint.configs.recommended,
+      reactHooks.configs.flat.recommended,
+      reactRefresh.configs.vite,
+    ],
+    languageOptions: {
+      globals: globals.browser,
+    },
+  },
+])

frontend/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Control Center</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>

frontend/nginx.conf

@@ -12,7 +12,7 @@ server {
     gzip_comp_level 6;
     gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
 
-    # Cache static assets (Angular uses content hashes)
+    # Cache static assets (Vite uses content hashes)
     location /assets/ {
         expires 1y;
         add_header Cache-Control "public, immutable";
@@ -34,20 +34,7 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
-    # Proxy SignalR WebSocket connections to backend
-    location /hubs/ {
-        proxy_pass http://backend:8080/hubs/;
-        proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection "upgrade";
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_read_timeout 86400;
-    }
-
-    # Angular SPA — all other routes fall back to index.html
+    # React SPA — all other routes fall back to index.html
     location / {
         try_files $uri $uri/ /index.html;
     }

frontend/package.json

@@ -1,34 +1,38 @@
 {
   "name": "frontend",
-  "version": "0.0.0",
-  "scripts": {
-    "ng": "ng",
-    "start": "ng serve",
-    "build": "ng build",
-    "watch": "ng build --watch --configuration development",
-    "test": "ng test"
-  },
   "private": true,
-  "packageManager": "npm@11.11.0",
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
   "dependencies": {
-    "@angular/animations": "^21.2.10",
-    "@angular/cdk": "^21.2.8",
-    "@angular/common": "^21.2.0",
-    "@angular/compiler": "^21.2.0",
-    "@angular/core": "^21.2.0",
-    "@angular/forms": "^21.2.0",
-    "@angular/material": "^21.2.8",
-    "@angular/platform-browser": "^21.2.0",
-    "@angular/router": "^21.2.0",
-    "@microsoft/signalr": "^10.0.0",
-    "rxjs": "~7.8.0",
-    "tslib": "^2.3.0"
+    "@tanstack/react-query": "^5.100.9",
+    "axios": "^1.16.0",
+    "lucide-react": "^1.14.0",
+    "react": "^19.2.5",
+    "react-dom": "^19.2.5",
+    "react-router-dom": "^7.15.0"
   },
   "devDependencies": {
-    "@angular/build": "^21.2.8",
-    "@angular/cli": "^21.2.8",
-    "@angular/compiler-cli": "^21.2.0",
-    "prettier": "^3.8.1",
-    "typescript": "~5.9.2"
+    "@eslint/js": "^10.0.1",
+    "@tailwindcss/vite": "^4.2.4",
+    "@types/node": "^24.12.2",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.1",
+    "autoprefixer": "^10.5.0",
+    "eslint": "^10.2.1",
+    "eslint-plugin-react-hooks": "^7.1.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.5.0",
+    "postcss": "^8.5.14",
+    "tailwindcss": "^4.2.4",
+    "typescript": "~6.0.2",
+    "typescript-eslint": "^8.58.2",
+    "vite": "^8.0.10"
   }
 }