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/theme/palettes.ts

@@ -76,7 +76,7 @@ export const lightColors = {
     link: '#4A88C7',
     success: '#34C759',
     danger: '#FF3B30',
-    bubbleOutgoing: '#7CB9FF',  // 柔和的淡蓝色
+    bubbleOutgoing: '#E8E8E8',  // 柔和的淡灰色
     bubbleIncoming: '#FFFFFF',  // 对方发的消息 - 纯白
     replyTint: '#DFF2FF',
     replyTintActive: '#CFEAFF',
@@ -168,7 +168,7 @@ export const darkColors = {
     link: '#5AC8FA',
     success: '#32D74B',
     danger: '#FF453A',
-    bubbleOutgoing: '#2E5A8C',  // 暗色模式：深蓝气泡
+    bubbleOutgoing: '#3A3A3C',  // 暗色模式：深灰色
     bubbleIncoming: '#2C2C2E',  // 暗色模式：灰色气泡
     replyTint: '#1A3A52',
     replyTintActive: '#224060',