fix(ci): nginx index.html 不缓存，防止部署后白屏

.gitea/workflows/deploy-test.yml

@@ -124,6 +124,18 @@ jobs:
               gzip_types text/plain text/css application/json application/javascript text/xml image/svg+xml;
               gzip_min_length 256;
 
+              # 管理后台入口文件不缓存
+              location = /admin/index.html {
+                  alias /usr/share/nginx/html/admin/index.html;
+                  add_header Cache-Control "no-cache, must-revalidate";
+              }
+
+              # 管理后台 (Vue3 SPA)
+              location /admin/ {
+                  alias /usr/share/nginx/html/admin/;
+                  try_files $uri $uri/ /admin/index.html;
+              }
+
               # 后端 SDK 静态文件
               location /tac/ {
                   root /usr/share/nginx/html;
@@ -139,12 +151,6 @@ jobs:
                   proxy_set_header X-Forwarded-Proto $scheme;
               }
 
-              # 管理后台 (Vue3 SPA)
-              location /admin/ {
-                  alias /usr/share/nginx/html/admin/;
-                  try_files $uri $uri/ /admin/index.html;
-              }
-
               # 管理后台 API 反代
               location ^~ /admin/api/ {
                   proxy_pass http://tianai-captcha:18200/api/;