feat: 添加连锁门店系统首页及核心UI组件

新增首页布局、导航栏、页脚及多个核心UI组件（按钮、卡片、表格等）
添加图片资源、工具函数和样式配置
实现响应式设计和主题支持
包含行业解决方案展示区块

components/ui/card.tsx

@@ -0,0 +1,92 @@
+import * as React from 'react'
+
+import { cn } from '@/lib/utils'
+
+function Card({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card"
+      className={cn(
+        'bg-card text-card-foreground flex flex-col gap-6 rounded-xl border py-6 shadow-sm',
+        className,
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardHeader({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card-header"
+      className={cn(
+        '@container/card-header grid auto-rows-min grid-rows-[auto_auto] items-start gap-2 px-6 has-data-[slot=card-action]:grid-cols-[1fr_auto] [.border-b]:pb-6',
+        className,
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card-title"
+      className={cn('leading-none font-semibold', className)}
+      {...props}
+    />
+  )
+}
+
+function CardDescription({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card-description"
+      className={cn('text-muted-foreground text-sm', className)}
+      {...props}
+    />
+  )
+}
+
+function CardAction({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card-action"
+      className={cn(
+        'col-start-2 row-span-2 row-start-1 self-start justify-self-end',
+        className,
+      )}
+      {...props}
+    />
+  )
+}
+
+function CardContent({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card-content"
+      className={cn('px-6', className)}
+      {...props}
+    />
+  )
+}
+
+function CardFooter({ className, ...props }: React.ComponentProps<'div'>) {
+  return (
+    <div
+      data-slot="card-footer"
+      className={cn('flex items-center px-6 [.border-t]:pt-6', className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Card,
+  CardHeader,
+  CardFooter,
+  CardTitle,
+  CardAction,
+  CardDescription,
+  CardContent,
+}