basic stracture and auth

in memory db :)

apps/admin/src/components/ui/Button.tsx

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+import React from 'react'
+
+interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
+  variant?: 'primary' | 'secondary'
+  children: React.ReactNode
+}
+
+export function Button({ variant = 'primary', children, className = '', ...props }: ButtonProps) {
+  const baseClasses = 'px-4 py-2 rounded-md font-medium transition-colors'
+  const variantClasses = {
+    primary: 'bg-blue-600 text-white hover:bg-blue-700',
+    secondary: 'bg-gray-200 text-gray-900 hover:bg-gray-300',
+  }
+
+  return (
+    <button
+      className={`${baseClasses} ${variantClasses[variant]} ${className}`}
+      {...props}
+    >
+      {children}
+    </button>
+  )
+}

apps/admin/src/components/ui/Card.tsx

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+import React from 'react'
+
+interface CardProps {
+  children: React.ReactNode
+  className?: string
+}
+
+export function Card({ children, className = '' }: CardProps) {
+  return (
+    <div className={`bg-white rounded-lg shadow-md p-6 ${className}`}>
+      {children}
+    </div>
+  )
+}
+
+export function CardHeader({ children, className = '' }: CardProps) {
+  return (
+    <div className={`mb-4 ${className}`}>
+      {children}
+    </div>
+  )
+}
+
+export function CardContent({ children, className = '' }: CardProps) {
+  return (
+    <div className={className}>
+      {children}
+    </div>
+  )
+}