fix: align Hotmail API integration with current dev

- merge the latest dev changes into PR #69 before continuing the review flow
- keep Microsoft API mode while preserving mailbox-by-mailbox polling and verification filters
- update the Hotmail side panel copy and helper coverage for the repaired API path

tests/hotmail-api-mode.test.js

@@ -26,6 +26,20 @@ test('Hotmail API对接应接入微软邮箱 helper 而不是旧远程服务占
   const background = fs.readFileSync('background.js', 'utf8');
 
   assert.match(background, /importScripts\([^)]*microsoft-email\.js[^)]*\)/, 'background 应加载微软邮箱 helper');
-  assert.match(background, /fetchMicrosoftVerificationCode/, '步骤 4\/7 应接入微软验证码读取 helper');
   assert.match(background, /fetchMicrosoftMailboxMessages/, '账号校验和最新验证码应接入微软邮箱列表 helper');
+  assert.match(
+    background,
+    /fetchMicrosoftMailboxMessages\(\{[\s\S]*mailbox,[\s\S]*top:\s*10,/,
+    '微软邮箱 helper 应按请求的邮箱夹读取消息'
+  );
+  assert.match(
+    background,
+    /for \(const mailbox of mailboxes\) \{\s*const result = await requestHotmailRemoteMailbox\(workingAccount, mailbox\);/s,
+    'API对接模式不应丢掉 INBOX\/Junk 的逐邮箱夹轮询'
+  );
+  assert.match(
+    background,
+    /pickVerificationMessageWithTimeFallback\(fetchResult\.messages, \{/,
+    '步骤 4\/7 应继续复用现有验证码筛选与时间回退逻辑'
+  );
 });