Sprint 2 engine: TCO, investment, ramp-aware cash flow, scenarios, planner overrides, shelfware, KB curation

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/api/portfolio/route.ts

@@ -0,0 +1,10 @@
+import { NextResponse } from "next/server";
+import { getAssessment, getCatalog, listAssessments } from "@/lib/store";
+import { buildPortfolio } from "@/lib/portfolio";
+import type { Assessment } from "@/lib/types";
+
+export async function GET() {
+  const [summaries, catalog] = await Promise.all([listAssessments(), getCatalog()]);
+  const all = (await Promise.all(summaries.map((s) => getAssessment(s.id)))).filter(Boolean) as Assessment[];
+  return NextResponse.json(buildPortfolio(all, catalog));
+}