Reorder language dropdown for better UX

New order:
1. Primary: English, Japanese
2. Chinese: Simplified, Traditional
3. Korean
4. Other Asian: Hindi, Vietnamese, Turkish
5. European: German, French, Spanish, Portuguese, Russian,
   Ukrainian, Italian, Polish

This prioritizes the most commonly used languages in the target
market while maintaining a logical regional grouping.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/app/Http/Middleware/SetLocale.php

@@ -12,10 +12,26 @@ class SetLocale
 {
     /**
      * Supported locales (LTR languages only)
+     * Order: English, Japanese, Chinese, Korean, Other Asian, European
      */
     public const SUPPORTED_LOCALES = [
+        // Primary languages
         'en' => 'English',
         'ja' => '日本語',
+
+        // Chinese variants
+        'zh-CN' => '简体中文',
+        'zh-TW' => '繁體中文',
+
+        // Korean
+        'ko' => '한국어',
+
+        // Other Asian languages
+        'hi' => 'हिन्दी',
+        'vi' => 'Tiếng Việt',
+        'tr' => 'Türkçe',
+
+        // European languages
         'de' => 'Deutsch',
         'fr' => 'Français',
         'es' => 'Español',
@@ -23,13 +39,7 @@ class SetLocale
         'ru' => 'Русский',
         'uk' => 'Українська',
         'it' => 'Italiano',
-        'hi' => 'हिन्दी',
-        'vi' => 'Tiếng Việt',
-        'tr' => 'Türkçe',
         'pl' => 'Polski',
-        'zh-CN' => '简体中文',
-        'zh-TW' => '繁體中文',
-        'ko' => '한국어',
     ];
 
     /**