chore: harden build and deployment workflow

nginx/nginx.conf.example

@@ -49,6 +49,8 @@ server {
     add_header X-Content-Type-Options "nosniff" always;
     add_header X-XSS-Protection "1; mode=block" always;
     add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+    add_header Permissions-Policy "camera=(), geolocation=(), microphone=()" always;
+    add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https:; font-src 'self' data:; media-src 'self' blob: https:; connect-src 'self' https: ws: wss:; worker-src 'self' blob:; object-src 'none'; base-uri 'self'; frame-ancestors 'self'; form-action 'self';" always;
 
     # 隐藏 Nginx 版本
     server_tokens off;
@@ -79,11 +81,21 @@ server {
         index index.html;
         try_files $uri $uri/ =404;
 
-        # 静态资源缓存
-        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
-            expires 30d;
-            add_header Cache-Control "public, immutable";
-        }
+    }
+
+    location /assets/ {
+        root /usr/share/nginx/html;
+        expires 1y;
+    }
+
+    location /libs/ {
+        root /usr/share/nginx/html;
+        expires 30d;
+    }
+
+    location /downloads/ {
+        alias /runtime/downloads/;
+        expires 1h;
     }
 
     # ============================================
@@ -98,6 +110,7 @@ server {
         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_set_header X-Request-ID $request_id;
         proxy_cache_bypass $http_upgrade;
 
         # Cookie 传递配置（验证码 session 需要）
@@ -125,5 +138,6 @@ server {
         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_set_header X-Request-ID $request_id;
     }
 }