refactor(pages): 统一命名规范并修复 SeatMapOverlay 元素等待目标错误

- AutoLibPages → AutoLib（移除实现细节后缀）
- ReserveValidator → ReserveChecker（与 RecordChecker 命名一致）
- CaptchaHandler → CaptchaSolver（语义更准确，职责是"求解"验证码）
- ReserveChecker.validate() → check()（与 RecordChecker 风格统一）
- 修复 SeatMapOverlay.selectSeat() 中 _waitClickable 等待页面全局
  <a> 而非具体 seat_link 元素的时序缺陷
- ALMainWorkers 切换为 pages.AutoLib 新版实现

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/pages/flows/_helpers.py

@@ -68,7 +68,6 @@ def findBestTimeOption(
         )
         actual_diff = time_val - target_time
         abs_diff = abs(actual_diff)
-
         if abs_diff < best_time_diff or (
             abs_diff == best_time_diff
             and (
@@ -79,7 +78,6 @@ def findBestTimeOption(
             best_time_diff = abs_diff
             best_actual_diff = actual_diff
             best_time_opt = time_opt
-
     if best_time_opt is not None:
         return (best_time_opt, best_time_opt.text.strip(), best_actual_diff, free_times)
     return (None, None, None, free_times)