Implementa o MVP do Adaptador de Planilhas no Elo Pro.

O módulo usa a identidade Supabase, isola cada workspace e registra storage, TTL, runner e biblioteca XLSX como decisões ainda abertas.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/api/spreadsheet-adapter/jobs/[id]/download/route.ts

@@ -0,0 +1,31 @@
+import { NextResponse } from "next/server";
+import { errorResponse, requireReady } from "../../../_lib";
+import { downloadOutput } from "@/server/spreadsheet-adapter/process-job";
+import type { OutputFormat } from "@/domain/spreadsheet-adapter/types";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+export async function GET(request: Request, context: { params: Promise<{ id: string }> }) {
+  try {
+    const { ctx, deps } = await requireReady();
+    const { id } = await context.params;
+    const url = new URL(request.url);
+    const format = url.searchParams.get("format") as OutputFormat | null;
+    const sourceId = url.searchParams.get("sourceId");
+    if (!sourceId || (format !== "xlsx" && format !== "csv" && format !== "pdf")) {
+      return NextResponse.json({ error: { code: "INVALID_FORMAT", message: "Escolha XLSX, CSV ou PDF." } }, { status: 400 });
+    }
+    const file = await downloadOutput(deps, ctx, id, sourceId, format);
+    return new NextResponse(new Uint8Array(file.body), {
+      headers: {
+        "Content-Type": file.contentType,
+        "Content-Disposition": `attachment; filename="${file.filename}"`,
+        "Cache-Control": "no-store",
+        "X-Content-Type-Options": "nosniff",
+      },
+    });
+  } catch (error) {
+    return errorResponse(error);
+  }
+}