fix: 修复 H5 静态资源 404，将构建产物放到 /h5/ 路径下

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker/nginx.conf

@@ -17,10 +17,14 @@ server {
         add_header Content-Type text/plain;
     }
 
-    location / {
+    location /h5/ {
         try_files $uri $uri/ /index.html;
     }
 
+    location = / {
+        return 301 /h5/;
+    }
+
     location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
         expires 1y;
         add_header Cache-Control "public, immutable";