feat(ai-review 使用量): 新增多平台 AI 助理使用量統計與剩餘可用百分比

app/llm.js

@@ -1,5 +1,6 @@
 import axios from 'axios';
 import { getLLMConfig, getOpenCodeHttpsAgent } from './config.js';
+import { recordUsage, recordRateLimit } from './usage.js';
 import { line, error } from './log.js';
 
 function isOpenAIGpt55(provider, model) {
@@ -81,7 +82,7 @@ async function chatOpenCode(baseURL, model, systemPrompt, userContent, headers)
     },
     opencodeAxiosOptions(headers)
   );
-  return extractOpenCodeContent(resp.data);
+  return { content: extractOpenCodeContent(resp.data), data: resp.data };
 }
 
 export async function chat(systemPrompt, userContent) {
@@ -99,13 +100,17 @@ export async function chat(systemPrompt, userContent) {
     try {
       if (provider === 'opencode') {
         applyOpenCodeAuth(headers);
-        return await chatOpenCode(baseURL, model, systemPrompt, userContent, headers);
+        const { content, data } = await chatOpenCode(baseURL, model, systemPrompt, userContent, headers);
+        recordUsage(data);
+        return content;
       }
       const resp = await axios.post(
         chatEndpoint(baseURL, provider, model),
         chatPayload(provider, model, systemPrompt, userContent),
         { headers }
       );
+      recordUsage(resp.data);
+      recordRateLimit(resp.headers);
       return extractContent(provider, model, resp.data);
     } catch (e) {
       line(`[LLM] key[${i + 1}/${shuffled.length}] 失敗: ${e.message}`);