feat(core): initialize project skeleton with Electron + React + TypeScript

Set up the complete project foundation for ClawX, a graphical AI assistant:

- Electron main process with IPC handlers, menu, tray, and gateway management
- React renderer with routing, layout components, and page scaffolding
- Zustand state management for gateway, settings, channels, skills, chat, and cron
- shadcn/ui components with Tailwind CSS and CSS variable theming
- Build tooling with Vite, electron-builder, and TypeScript configuration
- Testing setup with Vitest and Playwright
- Development configurations (ESLint, Prettier, gitignore, env example)

src/types/channel.ts

@@ -0,0 +1,74 @@
+/**
+ * Channel Type Definitions
+ * Types for messaging channels (WhatsApp, Telegram, etc.)
+ */
+
+/**
+ * Supported channel types
+ */
+export type ChannelType = 'whatsapp' | 'telegram' | 'discord' | 'slack' | 'wechat';
+
+/**
+ * Channel connection status
+ */
+export type ChannelStatus = 'connected' | 'disconnected' | 'connecting' | 'error';
+
+/**
+ * Channel data structure
+ */
+export interface Channel {
+  id: string;
+  type: ChannelType;
+  name: string;
+  status: ChannelStatus;
+  lastActivity?: string;
+  error?: string;
+  avatar?: string;
+  metadata?: Record<string, unknown>;
+}
+
+/**
+ * Channel configuration for each type
+ */
+export interface ChannelConfig {
+  whatsapp: {
+    phoneNumber?: string;
+  };
+  telegram: {
+    botToken?: string;
+    chatId?: string;
+  };
+  discord: {
+    botToken?: string;
+    guildId?: string;
+  };
+  slack: {
+    botToken?: string;
+    appToken?: string;
+  };
+  wechat: {
+    appId?: string;
+  };
+}
+
+/**
+ * Channel icons mapping
+ */
+export const CHANNEL_ICONS: Record<ChannelType, string> = {
+  whatsapp: '📱',
+  telegram: '✈️',
+  discord: '🎮',
+  slack: '💼',
+  wechat: '💬',
+};
+
+/**
+ * Channel display names
+ */
+export const CHANNEL_NAMES: Record<ChannelType, string> = {
+  whatsapp: 'WhatsApp',
+  telegram: 'Telegram',
+  discord: 'Discord',
+  slack: 'Slack',
+  wechat: 'WeChat',
+};