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/cron/gdpr/route.ts

@@ -0,0 +1,15 @@
+import { NextResponse } from "next/server"
+import { isAuthorizedCron } from "@/lib/cron-auth"
+import { processDueDeletions } from "@/lib/gdpr/delete"
+
+// GDPR deletion drain: hard-deletes accounts whose grace period
+// (LEGAL.dataDeletionDays after the request) has elapsed. Scheduled daily via
+// DigitalOcean Functions — see functions/project.yml.
+export async function GET(request: Request) {
+  if (!isAuthorizedCron(request)) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
+  }
+
+  const { processed, deleted } = await processDueDeletions(25)
+  return NextResponse.json({ processed, deleted })
+}