feat: show import recovery actions

templates/auto_import_index.html

@@ -275,7 +275,7 @@
     jobs.forEach(job => {
       const tr = document.createElement('tr');
       const fileName = job.drive_file_name || '未記錄檔名';
-      const errorMsg = job.display_error_message || job.error_message || '—';
+      const actionHint = buildImportActionHint(job);
       const isRunning = job.status === 'downloading' || job.status === 'importing';
 
       tr.innerHTML = `
@@ -296,7 +296,7 @@
         </td>
         <td><span class="ai-jobtable__time">${formatTime(job.started_at)}</span></td>
         <td><span class="ai-jobtable__time">${formatTime(job.completed_at)}</span></td>
-        <td class="ai-jobtable__error">${escapeHtml(errorMsg)}</td>
+        <td class="ai-jobtable__error">${escapeHtml(actionHint)}</td>
         <td class="text-center">
           ${isRunning
             ? `<button class="btn btn-sm btn-outline-danger" onclick="failJob(${job.id})" title="取消任務"><i class="fas fa-times"></i></button>`
@@ -307,6 +307,31 @@
     });
   }
 
+  function buildImportActionHint(job) {
+    const status = String(job?.status || '');
+    const raw = String(job?.display_error_message || job?.error_message || '').trim();
+    const text = raw.toLowerCase();
+    if (status === 'completed') {
+      return '已更新業績資料，可回到今日作戰看建議。';
+    }
+    if (status === 'downloading' || status === 'importing' || status === 'pending') {
+      return '匯入進行中，完成後會更新日報與今日作戰。';
+    }
+    if (status === 'failed') {
+      if (text.includes('google drive') || raw.includes('雲端') || raw.includes('授權')) {
+        return '重新確認 Google Drive 授權，確認後再執行立即匯入。';
+      }
+      if (raw.includes('格式') || raw.includes('日期') || raw.includes('商品') || raw.includes('業績') || text.includes('excel')) {
+        return '改用當日業績明細檔，確認包含日期、商品與業績金額後重新匯入。';
+      }
+      if (raw.includes('同步') || raw.includes('未完整') || raw.includes('重啟')) {
+        return '重新匯入最新檔案；若重複失敗，請通知維護人員檢查同步流程。';
+      }
+      return '檢查檔案後重新匯入；若重複失敗，請通知維護人員。';
+    }
+    return raw || '等待系統更新任務狀態。';
+  }
+
   // ───── 工具 ─────
   function escapeHtml(text) {
     if (!text) return '';