feat: implement task management store with IPC integration

- Added a new task store in `src-react/stores/task.ts` to manage tasks and their statuses.
- Implemented functions for creating, executing, and retrying tasks, along with handling task progress and completion.
- Introduced persistence for tasks using IPC.
- Created utility functions for normalizing room types and building subtasks.
- Added a new CSS file for global styles in `src-react/styles.css`.
- Created runtime types in `src-react/types/runtime.ts` and exported them.
- Updated the main entry points for Vue and React applications to support dynamic framework loading.
- Refactored chat model interfaces and utility functions into `src/shared/chat-model.ts`.
- Updated TypeScript configuration to include paths for React components and types.
- Enhanced Vite configuration to support both Vue and React frameworks.

src-react/i18n/constants.ts

@@ -0,0 +1,15 @@
+import type { LanguageCode } from '../types/runtime';
+
+export const SUPPORTED_LANGUAGE_CODES = ['en', 'zh', 'ja'] as const satisfies readonly LanguageCode[];
+
+export type { LanguageCode };
+
+export const SUPPORTED_LANGUAGES = [
+  { code: 'en', label: 'English' },
+  { code: 'zh', label: '中文' },
+  { code: 'ja', label: '日本語' },
+] as const;
+
+export type Namespace = 'common' | 'conversation' | 'setting' | 'window';
+
+export const NAMESPACES = ['common', 'conversation', 'setting', 'window'] as const satisfies readonly Namespace[];