feat: Add support for OpenAI Responses endpoint and enhance proxy retry logic

- Updated proxyRetryPolicy to retry on all 4xx and 5xx status codes.
- Introduced 'responses' target format in TestChatRequestPayload.
- Implemented extractResponsesContent function to handle responses format in ModelTester.
- Enhanced ModelTester to support responses target format and display appropriate labels.
- Updated ProxyLogs to extract and display upstream paths from error messages.
- Added tests to ensure responses target format is preserved during payload sync.
- Created responses proxy route to handle requests to the new OpenAI Responses endpoint.
- Updated upstreamEndpoint logic to include responses endpoint handling.
- Added modelService tests to validate token route rebuilding logic.

src/server/routes/api/settings.ts

@@ -545,7 +545,7 @@ export async function settingsRoutes(app: FastifyInstance) {
         successMessage: (currentTask) => {
           const rebuild = (currentTask.result as any)?.rebuild;
           if (!rebuild) return '缓存清理后重建路由已完成';
-          return `缓存清理后重建完成：新增路由 ${rebuild.createdRoutes}，新增通道 ${rebuild.createdChannels}，移除通道 ${rebuild.removedChannels}`;
+          return `缓存清理后重建完成：新增路由 ${rebuild.createdRoutes}，移除旧路由 ${rebuild.removedRoutes ?? 0}，新增通道 ${rebuild.createdChannels}，移除通道 ${rebuild.removedChannels}`;
         },
         failureMessage: (currentTask) => `缓存清理后重建失败：${currentTask.error || 'unknown error'}`,
       },

src/server/routes/api/stats.ts

@@ -192,7 +192,7 @@ export async function statsRoutes(app: FastifyInstance) {
           successMessage: (currentTask) => {
             const rebuild = (currentTask.result as any)?.rebuild;
             if (!rebuild) return '模型广场刷新已完成';
-            return `模型广场刷新完成：新增路由 ${rebuild.createdRoutes}，新增通道 ${rebuild.createdChannels}，移除通道 ${rebuild.removedChannels}`;
+            return `模型广场刷新完成：新增路由 ${rebuild.createdRoutes}，移除旧路由 ${rebuild.removedRoutes ?? 0}，新增通道 ${rebuild.createdChannels}，移除通道 ${rebuild.removedChannels}`;
           },
           failureMessage: (currentTask) => `模型广场刷新失败：${currentTask.error || 'unknown error'}`,
         },

src/server/routes/api/test.ts

@@ -4,7 +4,7 @@ import { fetch } from 'undici';
 import { config } from '../../config.js';
 
 type TestChatMessage = { role: string; content: string };
-type TestTargetFormat = 'openai' | 'claude';
+type TestTargetFormat = 'openai' | 'claude' | 'responses';
 
 type TestChatRequestBody = {
   model?: string;
@@ -84,7 +84,11 @@ const validatePayload = (
     return null;
   }
 
-  const targetFormat: TestTargetFormat = body.targetFormat === 'claude' ? 'claude' : 'openai';
+  const targetFormat: TestTargetFormat = body.targetFormat === 'claude'
+    ? 'claude'
+    : body.targetFormat === 'responses'
+      ? 'responses'
+      : 'openai';
 
   return {
     model: body.model,
@@ -146,6 +150,56 @@ const convertOpenAiPayloadToClaudeBody = (
   return body;
 };
 
+const convertOpenAiPayloadToResponsesBody = (
+  payload: ValidatedTestChatPayload,
+  forceStream: boolean,
+): Record<string, unknown> => {
+  const systemContents: string[] = [];
+  const messages: Array<{ role: 'user' | 'assistant'; content: string }> = [];
+
+  for (const message of payload.messages) {
+    const role = typeof message.role === 'string' ? message.role : 'user';
+    const content = typeof message.content === 'string' ? message.content : '';
+    if (!content.trim()) continue;
+
+    if (role === 'system') {
+      systemContents.push(content);
+      continue;
+    }
+
+    messages.push({
+      role: role === 'assistant' ? 'assistant' : 'user',
+      content,
+    });
+  }
+
+  const body: Record<string, unknown> = {
+    model: payload.model,
+    stream: forceStream,
+  };
+
+  if (messages.length === 1 && messages[0].role === 'user' && systemContents.length === 0) {
+    body.input = messages[0].content;
+  } else {
+    body.input = messages;
+    if (systemContents.length > 0) {
+      body.instructions = systemContents.join('\n\n');
+    }
+  }
+
+  if (typeof payload.temperature === 'number' && Number.isFinite(payload.temperature)) {
+    body.temperature = payload.temperature;
+  }
+  if (typeof payload.top_p === 'number' && Number.isFinite(payload.top_p)) {
+    body.top_p = payload.top_p;
+  }
+  body.max_output_tokens = typeof payload.max_tokens === 'number' && Number.isFinite(payload.max_tokens)
+    ? payload.max_tokens
+    : 4096;
+
+  return body;
+};
+
 const buildUpstreamRequest = (
   payload: ValidatedTestChatPayload,
   forceStream: boolean,
@@ -162,6 +216,17 @@ const buildUpstreamRequest = (
     };
   }
 
+  if (payload.targetFormat === 'responses') {
+    return {
+      url: `http://127.0.0.1:${config.port}/v1/responses`,
+      headers: {
+        'Content-Type': 'application/json',
+        Authorization: `Bearer ${config.proxyToken}`,
+      },
+      body: convertOpenAiPayloadToResponsesBody(payload, forceStream),
+    };
+  }
+
   const { targetFormat: _targetFormat, ...openAiPayload } = payload;
   return {
     url: `http://127.0.0.1:${config.port}/v1/chat/completions`,

src/server/routes/api/tokens.ts

@@ -336,7 +336,7 @@ export async function tokensRoutes(app: FastifyInstance) {
         successMessage: (currentTask) => {
           const rebuild = (currentTask.result as any)?.rebuild;
           if (!rebuild) return '刷新模型并重建路由已完成';
-          return `刷新模型并重建路由完成：新增路由 ${rebuild.createdRoutes}，新增通道 ${rebuild.createdChannels}，移除通道 ${rebuild.removedChannels}`;
+          return `刷新模型并重建路由完成：新增路由 ${rebuild.createdRoutes}，移除旧路由 ${rebuild.removedRoutes ?? 0}，新增通道 ${rebuild.createdChannels}，移除通道 ${rebuild.removedChannels}`;
         },
         failureMessage: (currentTask) => `刷新模型并重建路由失败：${currentTask.error || 'unknown error'}`,
       },