feat: 新增 QuantaNote 项目展示，重构项目卡片与截图浏览组件

- 新增 QuantaNote 完整项目数据（特性描述、截图、Logo）
  - 为所有项目添加 logo 和 websiteUrl 字段支持
  - 移除 stars/forks 相关展示与排序逻辑
  - ScreenshotCarousel 增加左右切换箭头和 Lightbox 全屏预览（支持键盘导航）
  - 更新项目创建文档，补充 logo 和 installGuide 配置说明

src/components/ProjectCard.tsx

@@ -1,5 +1,5 @@
 import { Link } from 'react-router-dom';
-import { ExternalLink, Download, BookOpen, Star } from 'lucide-react';
+import { ExternalLink, Download, BookOpen, Globe } from 'lucide-react';
 import { useI18n } from '../hooks/useI18n';
 import { siteData } from '../data/siteData';
 import { getIcon } from '../utils/iconRegistry';
@@ -17,7 +17,12 @@ export default function ProjectCard({ project }: ProjectCardProps) {
   return (
     <div className="project-card">
       <div className="project-card-header">
-        <div className="project-icon">{IconComponent && <IconComponent size={22} />}</div>
+        <div className="project-icon">
+          {project.logo
+            ? <img src={project.logo} alt={project.name} className="project-logo" />
+            : (IconComponent && <IconComponent size={22} />)
+          }
+        </div>
         <div className="project-card-info">
           <div className="project-name">
             <Link to={`/projects/${project.id}`}>{project.displayName[lang] || project.name}</Link>
@@ -44,12 +49,6 @@ export default function ProjectCard({ project }: ProjectCardProps) {
         ))}
       </div>
 
-      <div className="project-card-meta">
-        <span className="badge badge-accent">
-          <Star size={12} /> {project.stars}
-        </span>
-      </div>
-
       <div className="project-card-actions">
         <a href={project.repoUrl} target="_blank" rel="noopener noreferrer" className="btn btn-sm">
           <ExternalLink size={14} /> GitHub
@@ -59,6 +58,16 @@ export default function ProjectCard({ project }: ProjectCardProps) {
             <Download size={14} /> {t('common.download')}
           </Link>
         )}
+        {project.websiteUrl && (
+          <a
+            href={project.websiteUrl}
+            target="_blank"
+            rel="noopener noreferrer"
+            className="btn btn-sm"
+          >
+            <Globe size={14} /> {t('detail.website')}
+          </a>
+        )}
         {project.docsUrl && (
           <a
             href={project.docsUrl}