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

lib/sendEmail.ts

@@ -0,0 +1,4 @@
+export async function sendEmail(to: string, subject: string, text: string): Promise<void> {
+    // For demo: log to console. Use nodemailer/sendgrid/whatever in prod.
+    console.log(`[Email to ${to}]: ${subject}\n${text}`);
+}