feat(web): DELETE /api/requests/[id] to remove a queued item

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/app/api/requests/[id]/route.test.ts

@@ -0,0 +1,37 @@
+import { describe, it, expect } from "vitest";
+import { DELETE } from "./route";
+import { prisma } from "@/lib/db";
+import type { Prisma } from "@prisma/client";
+
+function del(id: string) {
+  return new Request(`http://localhost/api/requests/${id}`, { method: "DELETE" });
+}
+
+async function seed(jobData: Prisma.JobCreateWithoutRequestInput) {
+  return prisma.request.create({
+    data: { artist: "A", album: "B", status: "pending", job: { create: jobData } },
+    include: { job: true },
+  });
+}
+
+describe("remove request API", () => {
+  it("deletes a queued request and cascades its job", async () => {
+    const created = await seed({ state: "requested" });
+    const res = await DELETE(del(created.id), { params: Promise.resolve({ id: created.id }) });
+    expect(res.status).toBe(200);
+    expect(await prisma.request.findUnique({ where: { id: created.id } })).toBeNull();
+    expect(await prisma.job.findUnique({ where: { id: created.job!.id } })).toBeNull();
+  });
+
+  it("refuses to remove an in-flight job", async () => {
+    const created = await seed({ state: "downloading" });
+    const res = await DELETE(del(created.id), { params: Promise.resolve({ id: created.id }) });
+    expect(res.status).toBe(400);
+    expect(await prisma.request.findUnique({ where: { id: created.id } })).not.toBeNull();
+  });
+
+  it("404s for a missing request", async () => {
+    const res = await DELETE(del("nope"), { params: Promise.resolve({ id: "nope" }) });
+    expect(res.status).toBe(404);
+  });
+});

web/src/app/api/requests/[id]/route.ts

@@ -0,0 +1,16 @@
+import { prisma } from "@/lib/db";
+
+export async function DELETE(_request: Request, { params }: { params: Promise<{ id: string }> }) {
+  const { id } = await params;
+
+  const req = await prisma.request.findUnique({ where: { id }, include: { job: true } });
+  if (!req) {
+    return Response.json({ error: "not found" }, { status: 404 });
+  }
+  if (req.job && req.job.state !== "requested") {
+    return Response.json({ error: "only queued items can be removed" }, { status: 400 });
+  }
+
+  await prisma.request.delete({ where: { id } }); // cascades Job + Candidates
+  return Response.json({ ok: true });
+}