feat: initial project setup for Meme Studio

Next.js 14 App Router application for managing homophone pun game levels:

- Better Auth with Prisma adapter for authentication
- MySQL database with Prisma ORM
- Level CRUD operations with drag-and-drop reordering
- Tencent COS integration for image uploads
- shadcn/ui components with Tailwind CSS
- TanStack Query for server state management

types/index.ts

@@ -0,0 +1,23 @@
+export interface Level {
+  id: string
+  imageUrl: string
+  answer: string
+  hint1: string | null
+  hint2: string | null
+  hint3: string | null
+  sortOrder: number
+  createdAt: Date
+  updatedAt: Date
+}
+
+export interface LevelFormData {
+  imageUrl: string
+  answer: string
+  hint1?: string
+  hint2?: string
+  hint3?: string
+}
+
+export interface ReorderRequest {
+  orders: { id: string; sortOrder: number }[]
+}