Refactor registration flow, update config, replace Turnstile patch

- Major refactor of grok_register_ttk.py: improved flow, error handling, logging
- Update config.example.json and config.json with new fields
- Replace turnstilePatch/content.js with new script.js approach
- Update start.sh for better Chromium/Turnstile handling
- Remove deprecated turnstilePatch/content.js

config.example.json

@@ -99,14 +99,14 @@
   "turnstile_retry_limit": 3,
   "// turnstile_stuck_timeout": "Turnstile 卡住判定超时（秒）",
   "turnstile_stuck_timeout": 150,
-  "// turnstile_fast_fail_count": "资料页内连续 getTurnstileToken 失败几次后放弃（服务器建议 4）",
-  "turnstile_fast_fail_count": 4,
+  "// turnstile_fast_fail_count": "资料页内连续 getTurnstileToken 失败几次后放弃（参考 Git-creat7 建议 3）",
+  "turnstile_fast_fail_count": 3,
   "// turnstile_retry_after_sec": "资料页等待 CF 多久后触发二次复用（秒）",
   "turnstile_retry_after_sec": 12,
   "// turnstile_retry_gap_sec": "两次二次复用之间的最小间隔（秒）",
   "turnstile_retry_gap_sec": 8,
-  "// turnstile_max_rounds": "单次 getTurnstileToken 内 click/poll 轮数",
-  "turnstile_max_rounds": 8,
+  "// turnstile_max_rounds": "单次 getTurnstileToken 内 reset+click 轮数（参考 15-20）",
+  "turnstile_max_rounds": 16,
   "// sso_timeout_base / sso_timeout_max / sso_progress_extension": "等待 sso cookie 的基础/上限/有进度时延长（秒）",
   "sso_timeout_base": 240,
   "sso_timeout_max": 480,