refactor: restructure core architecture and responsive system

This commit implements a major architectural refactor to improve modularity, type safety, and maintainability across the codebase.

Key changes include:
- **Responsive System Refactor**: Migrated from a monolithic `useResponsive` hook to a set of specialized, granular hooks (`useBreakpoint`, `useOrientation`, `usePlatform`, etc.) located in `src/presentation/hooks/responsive`. This reduces unnecessary re-renders and improves developer experience.
- **Core Service Restructuring**: Introduced a new directory structure for services, including dedicated folders for `datasources`, `mappers`, and domain-specific types (`message`, `post`).
- **Data Layer Improvements**:
    - Centralized JSON parsing logic in `src/database/core/jsonUtils.ts`.
    - Cleaned up repository implementations by removing redundant local utility functions.
    - Refactored `MessageMapper` to use the new centralized JSON utility.
- **Type System Cleanup**:
    - Decomposed the large `src/types/dto.ts` into a modular `src/types/dto/` directory.
    - Simplified `src/types/index.ts` and introduced backward-compatible aliases for core entities.
- **Utility Consolidation**:
    - Created a centralized `src/utils/formatTime.ts` to replace fragmented date formatting logic across various screens and components.
    - Removed deprecated responsive utility files in favor of the new hook-based system.
- **Service Logic Refinement**: Refactored `ApiClient` and `WebSocketService` to use a centralized `showVerificationModal` service, removing duplicated state management for verification prompts.

src/services/core/wsService.ts

@@ -4,6 +4,7 @@ import { api, WS_URL } from './api';
 import { eventBus } from '@/core/events/EventBus';
 import { MessageCategory, SystemMessageType, SystemMessageExtraData, MessageSegment } from '@/types/dto';
 import { systemNotificationService } from '../notification/systemNotificationService';
+import { showVerificationModal } from './verification';
 
 export type WSMessageType =
   | 'chat'
@@ -1147,15 +1148,8 @@ class WebSocketService {
     this.lastActivityAt = Date.now();
   }
 
-  private verificationModalShown = false;
-
   private handleVerificationRequired(): void {
-    if (this.verificationModalShown) return;
-    this.verificationModalShown = true;
-    eventBus.emit({ type: 'SHOW_VERIFICATION_MODAL' });
-    setTimeout(() => {
-      this.verificationModalShown = false;
-    }, 3000);
+    showVerificationModal();
   }
 
   private startHeartbeat(): void {