Initial commit: Next.js scaffold, Request entity, Prisma+Zod, Tailwind v4+shadcn

- Next.js 14 (TS, App Router) monolith
- Request entity (Draft state) via Prisma + Postgres, validated with Zod
- ESLint configured
- Tailwind v4 + shadcn/ui (new-york-v4 style)
- Vitest test suite (6 tests, runs against throwaway Postgres DB per file)
- Multi-agent dev workflow docs in CLAUDE.md and .claude/agents/

src/app/api/requests/route.ts

@@ -0,0 +1,30 @@
+import { NextResponse } from "next/server";
+import { createRequest, listRequests, validateCreateRequestInput } from "@/lib/requests";
+
+export async function POST(request: Request): Promise<NextResponse> {
+  let body: unknown;
+  try {
+    body = await request.json();
+  } catch {
+    return NextResponse.json({ error: "Request body must be valid JSON" }, { status: 400 });
+  }
+
+  if (typeof body !== "object" || body === null) {
+    return NextResponse.json({ error: "Request body must be a JSON object" }, { status: 400 });
+  }
+
+  const { employee_id, type, reason } = body as Record<string, unknown>;
+  const validation = validateCreateRequestInput({ employee_id, type, reason });
+
+  if (!validation.ok) {
+    return NextResponse.json({ error: validation.error }, { status: 400 });
+  }
+
+  const created = await createRequest(validation.value);
+  return NextResponse.json(created, { status: 201 });
+}
+
+export async function GET(): Promise<NextResponse> {
+  const requests = await listRequests();
+  return NextResponse.json(requests, { status: 200 });
+}