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/dashboard/metrics.ts

@@ -0,0 +1,44 @@
+// API endpoint: return metrics for current company
+import { NextApiRequest, NextApiResponse } from "next";
+import { getServerSession } from "next-auth";
+import { prisma } from "../../../lib/prisma";
+import { sessionMetrics } from "../../../lib/metrics";
+import { authOptions } from "../auth/[...nextauth]";
+
+interface SessionUser {
+    email: string;
+    name?: string;
+}
+
+interface SessionData {
+    user: SessionUser;
+}
+
+export default async function handler(
+    req: NextApiRequest,
+    res: NextApiResponse
+) {
+    const session = await getServerSession(req, res, authOptions) as SessionData | null;
+    if (!session?.user) return res.status(401).json({ error: "Not logged in" });
+
+    const user = await prisma.user.findUnique({
+        where: { email: session.user.email },
+        include: { company: true }
+    });
+
+    if (!user) return res.status(401).json({ error: "No user" });
+
+    const sessions = await prisma.session.findMany({
+        where: { companyId: user.companyId }
+    });
+
+    // Pass company config to metrics
+    // @ts-expect-error - Type conversion is needed between prisma session and ChatSession
+    const metrics = sessionMetrics(sessions, user.company);
+
+    res.json({
+        metrics,
+        csvUrl: user.company.csvUrl,
+        company: user.company
+    });
+}