docs: 移动蓝绿部署指南到 troubleshooting 目录

deploy-server/nginx/nginx-split.conf

@@ -48,28 +48,29 @@ http {
     # ----------------------------------------------------------------------
     # 上游服务定义（拆分版）
     # ----------------------------------------------------------------------
+    # 单体后端服务（所有 API 都走 backend:8000）
     upstream core_backend {
-        server core-svc:8001 max_fails=3 fail_timeout=30s;
+        server backend:8000 max_fails=3 fail_timeout=30s;
         keepalive 32;
     }
 
     upstream conversation_backend {
-        server conversation-svc:8002 max_fails=3 fail_timeout=30s;
+        server backend:8000 max_fails=3 fail_timeout=30s;
         keepalive 64;
     }
 
     upstream agent_backend {
-        server agent-svc:8003 max_fails=3 fail_timeout=30s;
+        server backend:8000 max_fails=3 fail_timeout=30s;
         keepalive 32;
     }
 
     upstream ai_backend {
-        server ai-svc:8004 max_fails=3 fail_timeout=30s;
+        server backend:8000 max_fails=3 fail_timeout=30s;
         keepalive 32;
     }
 
     upstream admin_backend {
-        server admin-svc:8005 max_fails=3 fail_timeout=30s;
+        server backend:8000 max_fails=3 fail_timeout=30s;
         keepalive 32;
     }
 
@@ -203,8 +204,10 @@ http {
         }
 
         # 通用 API 路由（兜底）
+        # 注意：proxy_pass 末尾加斜杠会自动 strip /api 前缀
+        # 例如: /api/auth_qrcode/create -> /auth_qrcode/create
         location /api/ {
-            proxy_pass http://conversation_backend;
+            proxy_pass http://conversation_backend/;
             proxy_http_version 1.1;
             proxy_set_header Host $host;
             proxy_set_header X-Real-IP $remote_addr;

deploy-server/nginx/nginx.conf

@@ -206,11 +206,13 @@ http {
 
             # 其他 API 路径
             proxy_pass http://backend_api/;
+            proxy_http_version 1.1;
             proxy_redirect off;  # 禁用重定向修改，让后端的 307/302 保持原始 location
             proxy_set_header Host $host;
             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 Connection "";
 
             # 超时设置（AI 回复可能较慢）
             proxy_connect_timeout 60s;