fix(cli): acr update 假綠與沉默修復——部署部分失敗必須印出、deploy 迴圈逐 worker 進度、migrate 錯誤印 server 回應

- update.ts: result.message 含失敗清單時不再被「✓ 部署完成」蓋掉（404 重跑 3 次找不到根因的元兇）
- update.ts: migrate-cron-index 非 2xx 印 response body 前 200 字 + 404/500 含義提示
- deploy.ts: downloadAndDeploy 逐 worker 印 [i/N] 進度（原本 20+ worker 靜默部署像當機）

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

cli/src/lib/deploy.ts

@@ -101,16 +101,25 @@ export async function downloadAndDeploy(ctx: DeployContext, ref = 'main'): Promi
   }
 
   // 3. 對每個 worker：注入 KV id（+ cypher WORKER_SUBDOMAIN）→ wrangler deploy。tier1 先 tier2 後。
+  // 逐 worker 串流進度（每個含 pnpm install + wrangler deploy，沉默會讓人以為卡住——
+  //   壓測 2026-06-11 richblack 觀察：「D1 ✓」後停很久其實在這個迴圈靜默部署 20+ worker）。
+  const allDirs = [...tier1, ...tier2];
   const failures: string[] = [];
   let deployed = 0;
-  for (const dir of [...tier1, ...tier2]) {
+  console.log(chalk.gray(`  → 部署 ${allDirs.length} 個 worker（每個含 install + deploy，依序進行）...`));
+  for (let i = 0; i < allDirs.length; i++) {
+    const dir = allDirs[i];
     const tomlPath = join(dir, 'wrangler.toml');
+    const label = dir.replace(/^.*\.component-builds\//, '').replace(/^.*\//, '');
+    process.stdout.write(chalk.gray(`    [${i + 1}/${allDirs.length}] ${label} ...`));
     try {
       injectWranglerConfig(tomlPath, ctx);
       runWranglerDeploy(dir, ctx);
       deployed++;
+      console.log(chalk.green(' ✓'));
     } catch (e) {
       failures.push(`${dir}: ${e instanceof Error ? e.message : String(e)}`);
+      console.log(chalk.yellow(' ⚠'));
     }
   }