fix: timing measurement before sending request (#5970)

src/renderer/src/providers/AiProvider/GeminiProvider.ts

@@ -633,6 +633,9 @@ export default class GeminiProvider extends BaseProvider {
       }
     }
 
+    // 在发起请求之前开始计时
+    const start_time_millsec = new Date().getTime()
+
     if (!streamOutput) {
       const response = await chat.sendMessage({
         message: messageContents as PartUnion,
@@ -646,7 +649,6 @@ export default class GeminiProvider extends BaseProvider {
     }
 
     onChunk({ type: ChunkType.LLM_RESPONSE_CREATED })
-    const start_time_millsec = new Date().getTime()
     const userMessagesStream = await chat.sendMessageStream({
       message: messageContents as PartUnion,
       config: {