Build GDPR compliance system: data export, account deletion, consent

- Data export (Art. 15/20): GET /api/gdpr/export serves a full JSON export
  of the user's data (credentials/tokens excluded, exclusions declared)
- Right to erasure (Art. 17): self-service deletion with 30-day grace
  period (Settings -> Privacy & Data), cancellable; daily /api/cron/gdpr
  drain cancels Stripe billing, purges Spaces files, cascade-deletes the
  account, anonymizes consent rows, and writes audit evidence
- Migration 0011: account_deletion_requests (partial unique index = one
  pending per user) + FK-less consent_log (survives erasure)
- Consent: terms/privacy acceptance logged at signup (email + Google);
  cookie banner with analytics opt-out (umami.disabled), choices logged
  server-side for signed-in users via POST /api/gdpr/consent
- Admin deleteUser upgraded to the same full purge (was leaving Spaces
  files and Stripe subscriptions orphaned)
- /gdpr legal page now points at the self-service tools
- scripts/verify-gdpr.ts: end-to-end verification vs live dev DB (22/22)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

app/api/gdpr/export/route.ts

@@ -0,0 +1,27 @@
+import { NextResponse } from "next/server"
+import { db } from "@/lib/db"
+import { usage_events } from "@/lib/db/schema"
+import { getSessionUser } from "@/lib/session"
+import { buildUserDataExport } from "@/lib/gdpr/export"
+
+// GDPR data export (Articles 15/20) — downloads everything the platform stores
+// about the signed-in user as a single JSON file. Sensitive credentials are
+// excluded by the builder (see lib/gdpr/export.ts).
+export async function GET() {
+  const user = await getSessionUser()
+  if (!user) return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
+
+  const data = await buildUserDataExport(user.id)
+
+  // DSAR evidence: record that the export was served.
+  await db.insert(usage_events).values({ user_id: user.id, event_type: "gdpr_data_export" })
+
+  const filename = `pmn-data-export-${new Date().toISOString().slice(0, 10)}.json`
+  return new NextResponse(JSON.stringify(data, null, 2), {
+    headers: {
+      "Content-Type": "application/json",
+      "Content-Disposition": `attachment; filename="${filename}"`,
+      "Cache-Control": "no-store",
+    },
+  })
+}