first commit

app/api/register/route.ts

@@ -0,0 +1,30 @@
+import bcrypt from "bcryptjs";
+import { NextResponse } from "next/server";
+import { prisma } from "../../../lib/prisma";
+import { isAdminEmail } from "../../../lib/auth";
+
+export async function POST(request: Request) {
+  const body = await request.json();
+  const { email, name, password } = body || {};
+
+  if (!email || !password) {
+    return NextResponse.json({ error: "Email und Passwort sind erforderlich." }, { status: 400 });
+  }
+
+  const existing = await prisma.user.findUnique({ where: { email } });
+  if (existing) {
+    return NextResponse.json({ error: "Account existiert bereits." }, { status: 409 });
+  }
+
+  const passwordHash = await bcrypt.hash(password, 10);
+  const user = await prisma.user.create({
+    data: {
+      email,
+      name: name || null,
+      passwordHash,
+      role: isAdminEmail(email) ? "ADMIN" : "USER"
+    }
+  });
+
+  return NextResponse.json({ id: user.id, email: user.email });
+}