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

pages/api/register.ts

@@ -0,0 +1,53 @@
+import { NextApiRequest, NextApiResponse } from "next";
+import { prisma } from "../../lib/prisma";
+import bcrypt from "bcryptjs";
+import { ApiResponse } from "../../lib/types";
+
+interface RegisterRequestBody {
+    email: string;
+    password: string;
+    company: string;
+    csvUrl?: string;
+}
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse<ApiResponse<{ success: boolean; } | { error: string; }>>) {
+    if (req.method !== "POST") return res.status(405).end();
+
+    const { email, password, company, csvUrl } = req.body as RegisterRequestBody;
+
+    if (!email || !password || !company) {
+        return res.status(400).json({
+            success: false,
+            error: "Missing required fields"
+        });
+    }
+
+    // Check if email exists
+    const exists = await prisma.user.findUnique({
+        where: { email }
+    });
+
+    if (exists) {
+        return res.status(409).json({
+            success: false,
+            error: "Email already exists"
+        });
+    }
+
+    const newCompany = await prisma.company.create({
+        data: { name: company, csvUrl: csvUrl || "" },
+    });
+    const hashed = await bcrypt.hash(password, 10);
+    await prisma.user.create({
+        data: {
+            email,
+            password: hashed,
+            companyId: newCompany.id,
+            role: "admin",
+        },
+    });
+    res.status(201).json({
+        success: true,
+        data: { success: true }
+    });
+}