refactor(导航): 将哈希路由改为标准路径路由

重构导航系统，将原有的哈希路由(#section)改为标准路径路由(/path)
修改相关组件和测试用例以适应新的路由方式
移除不必要的滚动和哈希监听逻辑

src/components/layout/header.tsx

@@ -1,66 +1,24 @@
 'use client';
 
-import { Suspense, useState, useEffect, useCallback, useRef } from 'react';
+import { Suspense, useState, useEffect, useCallback } from 'react';
 import { StaticLink } from '@/components/ui/static-link';
 import Image from 'next/image';
-import { usePathname, useSearchParams } from 'next/navigation';
+import { usePathname } from 'next/navigation';
 import { Menu, X } from 'lucide-react';
 import { AnimatePresence, motion } from 'framer-motion';
 import { Button } from '@/components/ui/button';
 import { COMPANY_INFO, NAVIGATION, type NavigationItem } from '@/lib/constants';
 import { useFocusTrap } from '@/hooks/use-focus-trap';
 
-declare global {
-  interface Window {
-    __isProgrammaticScroll?: boolean;
-  }
-}
-
 function HeaderContent() {
   const [isOpen, setIsOpen] = useState(false);
   const [isScrolled, setIsScrolled] = useState(false);
   const pathname = usePathname();
-  const searchParams = useSearchParams();
   const focusTrapRef = useFocusTrap<HTMLDivElement>(isOpen);
-  const isScrollingRef = useRef(false);
-  const scrollTimeoutRef = useRef<NodeJS.Timeout | null>(null);
-
-  const getActiveSection = useCallback(() => {
-    if (pathname === '/contact') {return 'contact';}
-    if (pathname === '/') {
-      const section = searchParams.get('section');
-      return section || 'home';
-    }
-    return '';
-  }, [pathname, searchParams]);
-
-  const activeSection = getActiveSection();
 
   useEffect(() => {
     const handleScroll = () => {
       setIsScrolled(window.scrollY > 20);
-      
-      if (pathname === '/' && !isScrollingRef.current && !window.__isProgrammaticScroll) {
-        const scrollPosition = window.scrollY + 100;
-        const sections = ['home', 'services', 'solutions', 'products', 'cases', 'about', 'team', 'news'];
-        
-        for (const sectionId of sections) {
-          const element = document.getElementById(sectionId);
-          if (element) {
-            const offsetTop = element.offsetTop;
-            const offsetHeight = element.offsetHeight;
-            
-            if (scrollPosition >= offsetTop && scrollPosition < offsetTop + offsetHeight) {
-              const currentSection = searchParams.get('section') || 'home';
-              if (currentSection !== sectionId) {
-                const url = sectionId === 'home' ? '/' : `/?section=${sectionId}`;
-                window.history.replaceState(null, '', url);
-              }
-              break;
-            }
-          }
-        }
-      }
     };
 
     const handleGlobalKeyDown = (e: KeyboardEvent) => {
@@ -75,11 +33,8 @@ function HeaderContent() {
     return () => {
       window.removeEventListener('scroll', handleScroll);
       window.removeEventListener('keydown', handleGlobalKeyDown);
-      if (scrollTimeoutRef.current) {
-        clearTimeout(scrollTimeoutRef.current);
-      }
     };
-  }, [pathname, isOpen, searchParams]);
+  }, [isOpen]);
 
   const handleKeyDown = useCallback((e: React.KeyboardEvent) => {
     if (e.key === 'Enter' || e.key === ' ') {
@@ -93,57 +48,21 @@ function HeaderContent() {
 
   const handleNavClick = useCallback((e: React.MouseEvent<HTMLAnchorElement>, item: NavigationItem) => {
     e.preventDefault();
-    
-    if (item.id === 'contact') {
-      window.location.href = '/contact';
-    } else if (item.id === 'home') {
-      if (pathname === '/') {
-        isScrollingRef.current = true;
-        window.scrollTo({ top: 0, behavior: 'smooth' });
-        window.history.pushState(null, '', '/');
-        
-        scrollTimeoutRef.current = setTimeout(() => {
-          isScrollingRef.current = false;
-        }, 1000);
-      } else {
-        window.location.href = '/';
-      }
-    } else {
-      if (pathname === '/') {
-        const scrollToSection = (retryCount = 0) => {
-          const element = document.getElementById(item.id);
-          if (element) {
-            isScrollingRef.current = true;
-            element.scrollIntoView({ behavior: 'smooth', block: 'start' });
-            window.history.pushState(null, '', `/?section=${item.id}`);
-            
-            scrollTimeoutRef.current = setTimeout(() => {
-              isScrollingRef.current = false;
-            }, 1000);
-          } else if (retryCount < 10) {
-            setTimeout(() => scrollToSection(retryCount + 1), 100);
-          }
-        };
-        scrollToSection();
-      } else {
-        window.location.href = `/?section=${item.id}`;
-      }
-    }
-    
+    window.location.href = item.href;
     setIsOpen(false);
-  }, [pathname]);
+  }, []);
 
   const isActive = useCallback((item: NavigationItem) => {
     if (item.id === 'contact') {
       return pathname === '/contact';
     }
     
-    if (pathname === '/') {
-      return activeSection === item.id;
+    if (item.id === 'home') {
+      return pathname === '/';
     }
     
-    return false;
-  }, [pathname, activeSection]);
+    return pathname === `/${item.id}`;
+  }, [pathname]);
 
   const navigationItems = NAVIGATION;