fix: convert solutions and cases pages to client components

src/app/(marketing)/solutions/page.tsx

@@ -1,12 +1,8 @@
-import { Metadata } from 'next';
+'use client';
+
 import { Button } from '@/components/ui/button';
 import { ArrowRight, Lightbulb, Cpu, Users, Calendar, CheckCircle2, TrendingUp, Code, FileText } from 'lucide-react';
 
-export const metadata: Metadata = {
-  title: '解决方案 - 睿新致远',
-  description: '三种角色，一种身份——您的成长伙伴',
-};
-
 export default function SolutionsPage() {
   return (
     <div className="min-h-screen bg-white">