perf(agent): optimize web SSE streaming

docker/nginx.common.conf

@@ -31,15 +31,16 @@ location /cookiecloud {
 }
 
 # SSE特殊配置
-location ~ ^/api/v1/(system/(message|progress/|logging)|search/.*/stream$) {
+location ~ ^/api/v1/(system/(message|progress/|logging)|search/.*/stream$|message/agent/stream$) {
     error_log /dev/null crit;
 
     # SSE MIME类型设置
     default_type text/event-stream;
 
     # 禁用缓存
-    add_header Cache-Control no-cache;
+    add_header Cache-Control "no-cache, no-transform";
     add_header X-Accel-Buffering no;
+    gzip off;
     proxy_buffering off;
     proxy_cache off;