Add Docker deployment and CI/CD configuration

- Add Dockerfile for multi-stage build
- Add docker-compose.yml for easy deployment
- Add Gitea Actions CI/CD workflow
- Add deployment script (deploy.sh)
- Add nginx and supervisord configuration
- Add deployment documentation

Deployment target: 192.168.9.149:8080

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

docker/nginx.conf

@@ -0,0 +1,50 @@
+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log warn;
+pid /var/run/nginx.pid;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    include /etc/nginx/mime.types;
+    default_type application/octet-stream;
+
+    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
+                    '$status $body_bytes_sent "$http_referer" '
+                    '"$http_user_agent" "$http_x_forwarded_for"';
+
+    access_log /var/log/nginx/access.log main;
+
+    sendfile on;
+    tcp_nopush on;
+    keepalive_timeout 65;
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+
+    server {
+        listen 80;
+        server_name _;
+
+        # 前端静态文件
+        location / {
+            root /usr/share/nginx/html;
+            try_files $uri $uri/ /index.html;
+            index index.html;
+        }
+
+        # API代理到后端
+        location /api/ {
+            proxy_pass http://localhost:3000;
+            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_cache_bypass $http_upgrade;
+        }
+    }
+}