Initial commit: Expo app with Better Auth integration

- Complete Expo React Native app setup with TypeScript
- Better Auth authentication system integration
- Secure storage implementation for session tokens
- Authentication flow with login/logout functionality
- API client configuration for backend communication
- Responsive UI components with themed styling
- Expo Router navigation setup
- Development configuration and scripts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/types/template.ts

@@ -0,0 +1,55 @@
+export interface Category {
+  id: string;
+  name: string;
+  nameEn: string;
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface Tag {
+  id: string;
+  name: string;
+  nameEn: string;
+  description: string;
+  descriptionEn: string;
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface Template {
+  id: string;
+  title: string;
+  titleEn: string;
+  description: string;
+  descriptionEn: string;
+  coverImageUrl: string;
+  previewUrl: string;
+  aspectRatio: string;
+  userId: string;
+  categoryId: string;
+  content?: unknown;
+  formSchema?: unknown;
+  status: string;
+  createdAt: string;
+  updatedAt: string;
+  category: Category | null;
+  tags: Tag[];
+}
+
+export interface PaginationMeta {
+  page: number;
+  size: number;
+  total: number;
+  totalPages: number;
+}
+
+export interface TemplatesResponse {
+  success: boolean;
+  data: Template[];
+  pagination: PaginationMeta;
+}
+
+export interface TemplateResponse {
+  success: boolean;
+  data: Template;
+}