fix: 修复 CDN 刷新静默失败问题

- 添加 CDN 刷新日志输出，便于排查问题
- 添加密钥配置检查，未配置时给出明确提示
- 修复生产环境日志不输出的问题
- CDN 刷新失败不影响上传结果，仅记录警告

src/index.js

@@ -18,12 +18,10 @@ const PORT = process.env.PORT || 3030;
 
 app.use(express.json());
 
-// 生产环境日志（仅关键信息）
+// 日志函数（始终输出，PM2 会收集到日志文件）
 function log(...args) {
-  if (process.env.NODE_ENV !== 'production') {
   const timestamp = new Date().toISOString();
   console.log(`[${timestamp}]`, ...args);
-  }
 }
 
 // 加载完整配置
@@ -503,7 +501,16 @@ async function doUpload(chatId, feishu, uploader, info) {
     });
     
     const result = await uploader.upload(tempFile, targetKey, bucket);
-    await uploader.refreshCDN(bucket, targetKey);
+    
+    // 刷新 CDN（带日志回调）
+    try {
+      await uploader.refreshCDN(bucket, targetKey, (msg) => {
+        log(msg);
+      });
+    } catch (cdnError) {
+      log('⚠️ CDN 刷新失败，但上传成功:', cdnError.message);
+      // CDN 刷新失败不影响上传结果，继续
+    }
     
     // 获取实际存储桶名称（不是配置别名）
     const fullConfig = loadFullConfig();

src/qiniu-uploader.js

@@ -153,17 +153,29 @@ class QiniuUploader {
   }
 
   // 刷新 CDN
-  async refreshCDN(bucketName, key) {
+  async refreshCDN(bucketName, key, logCallback) {
     const bucketConfig = this.config.buckets[bucketName];
-    if (!bucketConfig) return;
+    if (!bucketConfig) {
+      if (logCallback) logCallback(`[CDN 刷新] 存储桶 "${bucketName}" 配置不存在`);
+      return;
+    }
 
     const { accessKey, secretKey, domain } = bucketConfig;
+    
+    // 检查密钥是否有效
+    if (!accessKey || !secretKey || accessKey === 'YOUR_ACCESS_KEY' || secretKey === 'YOUR_SECRET_KEY') {
+      if (logCallback) logCallback(`[CDN 刷新] 警告：存储桶 "${bucketName}" 的密钥未配置，跳过 CDN 刷新`);
+      return;
+    }
+
     const fileUrl = `${domain}/${key}`;
+    if (logCallback) logCallback(`[CDN 刷新] 请求刷新 URL: ${fileUrl}`);
 
     const body = JSON.stringify({ urls: [fileUrl] });
     const accessToken = this.generateAccessToken(accessKey, secretKey, 'POST', '/v2/tune/refresh', body);
 
-    await this.httpRequest('https://fusion.qiniuapi.com/v2/tune/refresh', {
+    try {
+      const result = await this.httpRequest('https://fusion.qiniuapi.com/v2/tune/refresh', {
         method: 'POST',
         headers: {
           'Host': 'fusion.qiniuapi.com',
@@ -172,6 +184,20 @@ class QiniuUploader {
           'Authorization': accessToken
         }
       }, body);
+
+      if (logCallback) logCallback(`[CDN 刷新] 响应状态：${result.status}, 数据：${JSON.stringify(result.data)}`);
+
+      if (result.status !== 200) {
+        throw new Error(`CDN 刷新失败：${JSON.stringify(result.data)}`);
+      }
+
+      if (logCallback) logCallback(`[CDN 刷新] ✅ 刷新成功`);
+
+      return result.data;
+    } catch (error) {
+      if (logCallback) logCallback(`[CDN 刷新] ❌ 错误：${error.message}`);
+      throw error;
+    }
   }
 
   // 生成上传凭证