feat: Banner UI美化 & 新增文章/公告/图库/媒体管理等功能

- Banner: Ken Burns缩放动效、左右导航箭头、进度条指示器、hover暂停、暗角遮罩、shimmer按钮动画
- 新增文章管理(CRUD)与公开文章页
- 新增Banner/Gallery图片管理API
- 新增媒体管理页面
- 新增更新日志页面
- 新增页面访问追踪
- 新增Markdown渲染组件
- .gitignore排除.cursor目录

Made-with: Cursor

package.json

@@ -20,6 +20,7 @@
     "@base-ui/react": "^1.3.0",
     "@prisma/adapter-pg": "^7.5.0",
     "@prisma/client": "^7.5.0",
+    "@uiw/react-md-editor": "^4.0.11",
     "bcryptjs": "^3.0.3",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
@@ -30,6 +31,9 @@
     "pg": "^8.20.0",
     "react": "19.2.3",
     "react-dom": "19.2.3",
+    "react-markdown": "^10.1.0",
+    "rehype-highlight": "^7.0.2",
+    "remark-gfm": "^4.0.1",
     "shadcn": "^4.0.8",
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.5.0",