docs: update documents

docs/phase_chart_zh.md

@@ -3,31 +3,20 @@ description: Pingap 处理流程
 ---
 
 ```mermaid
- graph TD;
-    start("new request")-->request_filter;
-    request_filter-->upstream_peer;
-
-    upstream_peer-->Connect{{IO: connect to upstream}};
-
-    Connect--connection success-->connected_to_upstream;
-    Connect--connection failure-->fail_to_connect;
-
-    connected_to_upstream-->upstream_request_filter;
-    upstream_request_filter --> SendReq{{IO: send request to upstream}};
-    SendReq-->RecvResp{{IO: read response from upstream}};
-    RecvResp-->upstream_response_filter-->response_filter-->upstream_response_body_filter-->response_body_filter-->logging-->endreq("request done");
-
-    fail_to_connect --can retry-->upstream_peer;
-    fail_to_connect --can't retry-->fail_to_proxy--send error response-->logging;
-
-    RecvResp--failure-->IOFailure;
-    SendReq--failure-->IOFailure;
-    error_while_proxy--can retry-->upstream_peer;
-    error_while_proxy--can't retry-->fail_to_proxy;
-
-    request_filter --send response-->logging
-
-
-    Error>any response filter error]-->error_while_proxy
-    IOFailure>IO error]-->error_while_proxy
+graph TD;
+    start("新的请求")-->请求服务筛选;
+    请求服务筛选--是否匹配stats-->获取stats数据-->响应请求;
+    请求服务筛选--是否匹配admin-->获取admin管理后台-->响应请求;
+    请求服务筛选--根据host与path选择对应的Location-->Location筛选;
+    Location筛选--无匹配Location-->返回500出错-->响应请求;
+    Location筛选--有匹配Location-->按需重新Path-->Upstream处理;
+    Upstream处理--是否静态目录-->读取静态文件-->响应请求;
+    Upstream处理--是否mock-->响应mock数据-->响应请求;
+    Upstream处理--其它类型-->连接Upstream;
+    连接Upstream--连接失败-->转换出错信息-->响应请求;
+    连接Upstream--连接成功-->记录连接相关信息-->写入额外的转发请求头-->等待Upstream响应;
+    等待Upstream响应--成功-->添加额外的响应头-->响应请求;
+    等待Upstream响应--失败-->转换出错信息-->响应请求;
+
+    响应请求--发送响应数据-->stop("记录日志");
 ```