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/services/__init__.py

@@ -7,12 +7,12 @@ This software is provided "as is", without any warranty of any kind.
 You may use, modify, and distribute this file under the terms of the MIT License.
 See the LICENSE file for details.
 """
-from pages.services.CaptchaHandler import CaptchaHandler
-from pages.services.ReserveValidator import ReserveValidator
+from pages.services.CaptchaSolver import CaptchaSolver
+from pages.services.ReserveChecker import ReserveChecker
 from pages.services.RecordChecker import RecordChecker
 
 __all__ = [
-    "CaptchaHandler",
-    "ReserveValidator",
+    "CaptchaSolver",
+    "ReserveChecker",
     "RecordChecker",
 ]