frontend-dev（前端开发）

Frontend Development

Use when creating or modifying Next.js pages, React components, Tailwind CSS styles, API integration, hooks, or i18n.

Before Writing Code

1. Read docs/agent/architecture/frontend-workflow.md for user flow
2. Read docs/agent/design/style-guide.md for Swiss International Style (REQUIRED)
3. Read docs/agent/coding-standards.md for conventions
4. Check existing components in apps/frontend/components/

Non-Negotiable Rules

1. Swiss International Style - ALL UI changes must follow it
2. rounded-none everywhere - no rounded corners, ever
3. Hard shadows - shadow-[4px_4px_0px_0px_#000000], never soft shadows
4. Run npm run lint before committing
5. Run npm run format before committing
6. Enter key handling on all textareas

Swiss International Style Quick Reference

Anti-Patterns (NEVER)

• rounded-* (except rounded-none)
• Gradients or blur shadows
• Colors outside the palette
• Pastel or soft colors
• Decorative icons without function

Patterns

New Component

'use client';

interface MyComponentProps {
  title: string;
  onAction: () => void;
}

export function MyComponent({ title, onAction }: MyComponentProps) {
  return (
    <div className="bg-white border-2 border-black shadow-[4px_4px_0px_0px_#000000] p-6">
      <h3 className="font-serif text-xl mb-4">{title}</h3>
      <button
        onClick={onAction}
        className="rounded-none border-2 border-black px-4 py-2 bg-blue-700 text-white shadow-[2px_2px_0px_0px_#000000] hover:translate-y-[1px] hover:translate-x-[1px] hover:shadow-none transition-all"
      >
        Action
      </button>
    </div>
  );
}

Textarea (Enter key fix)

const handleKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
  if (e.key === 'Enter') e.stopPropagation();
};

<textarea onKeyDown={handleKeyDown} className="w-full rounded-none border-2 border-black p-3 font-sans" />

Bundle Optimization

// Direct icon import (NOT barrel import)
import FileText from 'lucide-react/dist/esm/icons/file-text';

// Dynamic import for heavy components
import dynamic from 'next/dynamic';
const PDFViewer = dynamic(() => import('./PDFViewer'), { ssr: false });

API Integration

// Use Promise.all for independent fetches
const [resumes, jobs] = await Promise.all([
  api.get('/api/v1/resumes'),
  api.get('/api/v1/jobs'),
]);

Checklist

• npm run lint passes
• npm run format run
• rounded-none on all elements
• Hard shadows, Swiss palette only
• Correct typography (serif headers, mono labels, sans body)
• Textareas have Enter key handler
• Icons imported directly, heavy components use next/dynamic
• Independent fetches use Promise.all()