feat: initialize project with Next.js, Prisma, and Tailwind CSS

- Add package.json with dependencies and scripts for Next.js and Prisma
- Implement API routes for session management, user authentication, and company configuration
- Create database schema for Company, User, and Session models in Prisma
- Set up authentication with NextAuth and JWT
- Add password reset functionality and user registration endpoint
- Configure Tailwind CSS and PostCSS for styling
- Implement metrics and dashboard settings API endpoints

app/dashboard/users.tsx

@@ -0,0 +1,76 @@
+'use client';
+import { useState, useEffect } from 'react';
+import { UserSession } from '../../lib/types';
+
+interface UserItem {
+  id: string;
+  email: string;
+  role: string;
+}
+
+interface UserManagementProps {
+  session: UserSession;
+}
+
+export default function UserManagement({ session }: UserManagementProps) {
+  const [users, setUsers] = useState<UserItem[]>([]);
+  const [email, setEmail] = useState<string>('');
+  const [role, setRole] = useState<string>('user');
+  const [msg, setMsg] = useState<string>('');
+
+  useEffect(() => {
+    fetch('/api/dashboard/users')
+      .then((r) => r.json())
+      .then((data) => setUsers(data.users));
+  }, []);
+
+  async function inviteUser() {
+    const res = await fetch('/api/dashboard/users', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ email, role }),
+    });
+    if (res.ok) setMsg('User invited.');
+    else setMsg('Failed.');
+  }
+
+  if (session.user.role !== 'admin') return null;
+
+  return (
+    <div className="bg-white p-6 rounded-xl shadow mb-6">
+      <h2 className="font-bold text-lg mb-4">User Management</h2>
+      <div className="flex gap-2 mb-3">
+        <input
+          className="border px-3 py-2 rounded"
+          placeholder="Email"
+          value={email}
+          onChange={(e) => setEmail(e.target.value)}
+        />
+        <select
+          className="border px-3 py-2 rounded"
+          value={role}
+          onChange={(e) => setRole(e.target.value)}
+        >
+          <option value="user">User</option>
+          <option value="admin">Admin</option>
+          <option value="auditor">Auditor</option>
+        </select>
+        <button
+          className="bg-blue-600 text-white rounded px-4"
+          onClick={inviteUser}
+        >
+          Invite
+        </button>
+      </div>
+      <div>{msg}</div>
+      <ul className="mt-4">
+        {users.map((u) => (
+          <li key={u.id} className="flex justify-between border-b py-1">
+            {u.email}{' '}
+            <span className="text-xs bg-gray-200 px-2 rounded">{u.role}</span>
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}