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

app/page.tsx

@@ -0,0 +1,27 @@
+import { Navbar } from "@/components/navbar"
+import { Footer } from "@/components/footer"
+import { HeroSection } from "@/components/sections/hero-section"
+import { ProductsSection } from "@/components/sections/products-section"
+import { AdvantagesSection } from "@/components/sections/advantages-section"
+import { SolutionsSection } from "@/components/sections/solutions-section"
+import { ProcessSection } from "@/components/sections/process-section"
+import { CasesSection } from "@/components/sections/cases-section"
+import { ContactSection } from "@/components/sections/contact-section"
+
+export default function Home() {
+  return (
+    <div className="min-h-screen bg-background text-foreground">
+      <Navbar />
+      <main>
+        <HeroSection />
+        <ProductsSection />
+        <AdvantagesSection />
+        <SolutionsSection />
+        <ProcessSection />
+        <CasesSection />
+        <ContactSection />
+      </main>
+      <Footer />
+    </div>
+  )
+}