feat(discovery): POST/GET /api/discover/run trigger + status

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

web/src/app/api/discover/run/route.test.ts

@@ -0,0 +1,21 @@
+import { describe, it, expect } from "vitest";
+import { prisma } from "@/lib/db";
+import { POST, GET } from "./route";
+
+describe("discover run API", () => {
+  it("POST sets discover.requested and GET reflects it", async () => {
+    const res = await POST(new Request("http://localhost/api/discover/run", { method: "POST" }));
+    expect(res.status).toBe(202);
+    expect((await res.json()).requested).toBe(true);
+    expect((await prisma.config.findUnique({ where: { key: "discover.requested" } }))?.value).toBe("true");
+
+    const body = await (await GET()).json();
+    expect(body.requested).toBe(true);
+    expect(body.result).toBeNull();
+  });
+
+  it("GET returns discover.result when the worker has written it", async () => {
+    await prisma.config.create({ data: { key: "discover.result", value: "artists 3, albums 1" } });
+    expect((await (await GET()).json()).result).toBe("artists 3, albums 1");
+  });
+});

web/src/app/api/discover/run/route.ts

@@ -0,0 +1,21 @@
+import { prisma } from "@/lib/db";
+
+export async function POST(_request: Request) {
+  await prisma.config.upsert({
+    where: { key: "discover.requested" },
+    create: { key: "discover.requested", value: "true", secret: false },
+    update: { value: "true" },
+  });
+  return Response.json({ requested: true }, { status: 202 });
+}
+
+export async function GET() {
+  const [requested, result] = await Promise.all([
+    prisma.config.findUnique({ where: { key: "discover.requested" } }),
+    prisma.config.findUnique({ where: { key: "discover.result" } }),
+  ]);
+  return Response.json({
+    requested: requested?.value === "true",
+    result: result?.value ?? null,
+  });
+}