refactor(WebSocket): migrate from SSE to WebSocket for real-time messaging

- Replaced SSEClient with WSClient for handling real-time messaging.
- Updated ProcessMessageUseCase to initialize WebSocket listeners.
- Refactored messageService to prioritize WebSocket for sending messages, with fallback to HTTP.
- Removed sseService and adjusted imports across the application to utilize wsService.
- Enhanced message handling and connection management for improved performance and reliability.

src/stores/authStore.ts

@@ -14,7 +14,7 @@ import AsyncStorage from '@react-native-async-storage/async-storage';
 import { create } from 'zustand';
 import { User } from '../types';
 import { authService, resolveAuthApiError, LoginRequest, RegisterRequest } from '../services';
-import { sseService } from '../services/sseService';
+import { wsService } from '../services/wsService';
 import {
   initDatabase,
   closeDatabase,
@@ -95,7 +95,7 @@ function resolveLoginError(error: any): string {
 // ── 启动 SSE 实时服务 ──
 async function startRealtime(): Promise<void> {
   try {
-    await sseService.start();
+    await wsService.start();
   } catch (error) {
     console.error('[AuthStore] 启动 SSE 服务失败:', error);
   }
@@ -212,7 +212,7 @@ export const useAuthStore = create<AuthState>((set) => ({
       // 1. 通知服务端（Token 清理在 authService 内部完成）
       await authService.logout();
       // 2. 停止 SSE
-      sseService.stop();
+      wsService.stop();
       // 3. 清除 DB 中的用户缓存（DB 此时一定已初始化）
       await clearCurrentUserCache().catch(() => {});
       // 4. 关闭数据库连接