feat(chat): port chat widget components from Dart to React

src/app/chat/components/index.ts

@@ -1,5 +1,40 @@
 /**
- * @file Automatically generated by barrelsby.
+ * Chat 公共组件导出
  */
 
-export * from "./chat-screen";
+// 屏幕 + 顶层
+export { ChatScreen } from "./chat-screen";
+
+// 顶部 + 菜单
+export { ChatHeader } from "./chat-header";
+export { ChatMenuBar } from "./chat-menu-bar";
+
+// 消息区
+export { ChatArea } from "./chat-area";
+
+// 输入栏
+export { ChatInputBar } from "./chat-input-bar";
+export { ChatInputTextField } from "./chat-input-text-field";
+export { ChatSendButton } from "./chat-send-button";
+export { ChatMoreButton } from "./chat-more-button";
+export { ImageUploadButton } from "./image-upload-button";
+export { FunctionButtonBar } from "./function-button-bar";
+
+// 消息气泡
+export { MessageBubble } from "./message-bubble";
+export { MessageContent } from "./message-content";
+export { MessageAvatar } from "./message-avatar";
+export { TextBubble } from "./text-bubble";
+export { ImageBubble } from "./image-bubble";
+export { LottieMessageBubble } from "./lottie-message-bubble";
+export { DateHeader } from "./date-header";
+export { FullscreenImageViewer } from "./fullscreen-image-viewer";
+
+// 弹窗 / 浮层 / 卡片
+export { QuotaDialog } from "./quota-dialog";
+export { PwaInstallDialog } from "./pwa-install-dialog";
+export { PwaInstallOverlay } from "./pwa-install-overlay";
+export { BrowserHintOverlay } from "./browser-hint-overlay";
+export { AiDisclosureBanner } from "./ai-disclosure-banner";
+export { CharacterIntro } from "./character-intro";
+export { LanguageDialog, DEFAULT_LANGUAGES } from "./language-dialog";