feat: add request create/list API

web/src/app/api/requests/route.ts

@@ -0,0 +1,53 @@
+import { prisma } from "@/lib/db";
+
+export async function POST(request: Request) {
+  let body: unknown;
+  try {
+    body = await request.json();
+  } catch {
+    return Response.json({ error: "invalid JSON" }, { status: 400 });
+  }
+
+  const { artist, album } = (body ?? {}) as { artist?: unknown; album?: unknown };
+  if (typeof artist !== "string" || !artist.trim() || typeof album !== "string" || !album.trim()) {
+    return Response.json({ error: "artist and album are required" }, { status: 400 });
+  }
+
+  const created = await prisma.request.create({
+    data: {
+      artist: artist.trim(),
+      album: album.trim(),
+      job: { create: {} },
+    },
+    include: { job: true },
+  });
+
+  return Response.json(
+    {
+      id: created.id,
+      artist: created.artist,
+      album: created.album,
+      status: created.status,
+      job: { id: created.job!.id, state: created.job!.state, currentStage: created.job!.currentStage },
+    },
+    { status: 201 },
+  );
+}
+
+export async function GET() {
+  const requests = await prisma.request.findMany({
+    orderBy: { createdAt: "desc" },
+    include: { job: true },
+  });
+
+  return Response.json({
+    requests: requests.map((r) => ({
+      id: r.id,
+      artist: r.artist,
+      album: r.album,
+      status: r.status,
+      createdAt: r.createdAt,
+      job: r.job ? { state: r.job.state, currentStage: r.job.currentStage } : null,
+    })),
+  });
+}