feat(deploy): add Docker full-stack deployment and server pack scripts

Enable one-click production deploy via docker-compose.prod.yml, with deployment docs and zip packaging for Baota upload.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker/nginx/admin.conf

@@ -0,0 +1,22 @@
+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;
+
+    location /api/ {
+        proxy_pass http://api:3000;
+        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;
+    }
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}