Add Thai language support for various application components

- Introduced Thai translations for dashboard, knowledge, login, models, scripts, settings, skills, task, and common UI elements.
- Updated provider placeholders to include Thai language options.
- Modified locale resolution to support Thai language.
- Adjusted settings store to handle legacy language migration from Japanese to Thai.
- Enhanced runtime types to include Thai as a supported language.

src/pages/Cron/index.tsx

@@ -507,7 +507,7 @@ function formatWeekday(weekday: string, t: Translate): string {
 
 function resolveDateLocale(locale: LanguageCode): string {
   if (locale === 'zh') return 'zh-CN';
-  if (locale === 'ja') return 'ja-JP';
+  if (locale === 'th') return 'th-TH';
   return 'en-US';
 }