feat: Major update with validators, skills, dashboard, and docs reorganization

- Add validation framework (config, model, results, study validators)
- Add Claude Code skills (create-study, run-optimization, generate-report,
  troubleshoot, analyze-model)
- Add Atomizer Dashboard (React frontend + FastAPI backend)
- Reorganize docs into structured directories (00-09)
- Add neural surrogate modules and training infrastructure
- Add multi-objective optimization support

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

atomizer-dashboard/frontend/src/components/Card.tsx

@@ -0,0 +1,16 @@
+import React from 'react';
+
+interface CardProps {
+  children: React.ReactNode;
+  className?: string;
+  title?: string | React.ReactNode;
+}
+
+export function Card({ children, className = '', title }: CardProps) {
+  return (
+    <div className={`card ${className}`}>
+      {title && <h2 className="text-xl font-bold mb-4 text-primary-400">{title}</h2>}
+      {children}
+    </div>
+  );
+}