Update Caddyfile

Caddyfile

@@ -1,9 +1,9 @@
 :7860 {
-    handle /mcp* {
+    # MCP 直接透传，添加 Accept 头
+    @mcp path /mcp*
+    handle @mcp {
+        request_header Accept "application/json, text/event-stream"
         reverse_proxy localhost:8000 {
-            # 强制设置 Accept 头，覆盖客户端的请求头
-            header_up Accept "application/json, text/event-stream"
-            # SSE 长连接支持
             flush_interval -1
         }
     }