fix: 404, add agent category

[Vsion]

💻 变更类型 | Change Type

• ✨ feat
• 🐛 fix
• 💄 style
• 🔨 chore
• 📝 docs

🔀 变更说明 | Description of Change

• 修改 404 页面与主题一致
• 发现智能体页面修改:

1. 添加 query,category
2. 调整分类样式 margin => flex wrap
3. fix: 分类切换时滚动异常
4. fix: 左右箭头切换平滑滚动, 点击区域过小等问题

📝 补充信息 | Additional Information

[yunti-bot]

👍 @Vsion


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[yunti-bot]

❤️ Great PR @Vsion ❤️


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