Enhance Pushy class to support locale configuration in i18n initialization by adding optional locale property to ClientOptions interface.

Author: sunnylqm

src/client.ts

@@ -110,8 +110,7 @@ export class Pushy {
     this.clientType = clientType || 'Pushy';
     this.options.server = SERVER_PRESETS[this.clientType];
 
-    // Initialize i18n based on clientType
-    i18n.setLocale(this.clientType === 'Pushy' ? 'zh' : 'en');
+    i18n.setLocale(options.locale ?? this.clientType === 'Pushy' ? 'zh' : 'en');
 
     if (Platform.OS === 'ios' || Platform.OS === 'android') {
       if (!options.appKey) {

src/type.ts

@@ -86,6 +86,7 @@ export interface ClientOptions {
   appKey: string;
   server?: UpdateServerConfig;
   logger?: UpdateEventsLogger;
+  locale?: 'zh' | 'en';
   updateStrategy?:
     | 'alwaysAlert'
     | 'alertUpdateAndIgnoreError'