fix: 修复gemini转发

src/services/geminiAccountService.js

@@ -1022,15 +1022,23 @@ async function loadCodeAssist(client, projectId = null, proxyConfig = null) {
   const clientMetadata = {
     ideType: 'IDE_UNSPECIFIED',
     platform: 'PLATFORM_UNSPECIFIED',
-    pluginType: 'GEMINI',
-    duetProject: projectId
+    pluginType: 'GEMINI'
+  }
+
+  // 只有当projectId存在时才添加duetProject
+  if (projectId) {
+    clientMetadata.duetProject = projectId
   }
 
   const request = {
-    cloudaicompanionProject: projectId,
     metadata: clientMetadata
   }
 
+  // 只有当projectId存在时才添加cloudaicompanionProject
+  if (projectId) {
+    request.cloudaicompanionProject = projectId
+  }
+
   const axiosConfig = {
     url: `${CODE_ASSIST_ENDPOINT}/${CODE_ASSIST_API_VERSION}:loadCodeAssist`,
     method: 'POST',
@@ -1096,10 +1104,14 @@ async function onboardUser(client, tierId, projectId, clientMetadata, proxyConfi
 
   const onboardReq = {
     tierId,
-    cloudaicompanionProject: projectId,
     metadata: clientMetadata
   }
 
+  // 只有当projectId存在时才添加cloudaicompanionProject
+  if (projectId) {
+    onboardReq.cloudaicompanionProject = projectId
+  }
+
   // 创建基础axios配置
   const baseAxiosConfig = {
     url: `${CODE_ASSIST_ENDPOINT}/${CODE_ASSIST_API_VERSION}:onboardUser`,
@@ -1278,7 +1290,6 @@ async function generateContent(
   // 按照 gemini-cli 的转换格式构造请求
   const request = {
     model: requestData.model,
-    project: projectId,
     user_prompt_id: userPromptId,
     request: {
       ...requestData.request,
@@ -1286,6 +1297,11 @@ async function generateContent(
     }
   }
 
+  // 只有当projectId存在时才添加project字段
+  if (projectId) {
+    request.project = projectId
+  }
+
   logger.info('🤖 generateContent API调用开始', {
     model: requestData.model,
     userPromptId,
@@ -1340,7 +1356,6 @@ async function generateContentStream(
   // 按照 gemini-cli 的转换格式构造请求
   const request = {
     model: requestData.model,
-    project: projectId,
     user_prompt_id: userPromptId,
     request: {
       ...requestData.request,
@@ -1348,6 +1363,11 @@ async function generateContentStream(
     }
   }
 
+  // 只有当projectId存在时才添加project字段
+  if (projectId) {
+    request.project = projectId
+  }
+
   logger.info('🌊 streamGenerateContent API调用开始', {
     model: requestData.model,
     userPromptId,