MDK-424: app-health dashboard surface — banner, settings card, test-ping (#822)

* MDK-424-S5: dashboard healthcheck

* MDK-424:fixing rebase issues

* MDK-424: ci exemption for app.mode

* MDK-424: fix banner when apps it's in sandbox without failed webhook checks

* MDK-424: added e2e missed from PR 3 and for current PR 5

* MDK-424:fixes, removed CI check over app.mode and fix integration tests

* MDK-424: adding more e2e

* MDK-424: fix for some e2e

---------

Co-authored-by: Ezequiel Fridman <ezefridman@Ezequiels-MacBook-Pro.local>

Author: 2 people

examples/mdk-nextjs-demo/app/api/e2e/create-checkout/route.ts

@@ -0,0 +1,26 @@
+import { createCheckout, type CreateCheckoutParams } from '@moneydevkit/core';
+import { NextRequest, NextResponse } from 'next/server';
+
+function isEnabled() {
+  return process.env.MDK_DEMO_E2E_ENABLED === 'true';
+}
+
+function notFound() {
+  return new Response(null, { status: 404 });
+}
+
+export async function POST(request: NextRequest) {
+  if (!isEnabled()) return notFound();
+
+  const body = (await request.json()) as CreateCheckoutParams;
+  const result = await createCheckout({
+    ...body,
+    checkoutPath: body.checkoutPath ?? '/checkout',
+  });
+
+  if (result.error) {
+    return NextResponse.json({ error: result.error }, { status: result.error.status ?? 400 });
+  }
+
+  return NextResponse.json({ checkout: result.data.checkout });
+}

examples/mdk-nextjs-demo/app/api/e2e/get-checkout/route.ts

@@ -0,0 +1,27 @@
+import { getCheckout } from '@moneydevkit/core';
+import { NextRequest, NextResponse } from 'next/server';
+
+function isEnabled() {
+  return process.env.MDK_DEMO_E2E_ENABLED === 'true';
+}
+
+function notFound() {
+  return new Response(null, { status: 404 });
+}
+
+export async function GET(request: NextRequest) {
+  if (!isEnabled()) return notFound();
+
+  const checkoutId = request.nextUrl.searchParams.get('id') ?? request.nextUrl.searchParams.get('checkoutId');
+  if (!checkoutId) {
+    return NextResponse.json({ error: 'checkoutId is required' }, { status: 400 });
+  }
+
+  try {
+    const checkout = await getCheckout(checkoutId);
+    return NextResponse.json({ checkout });
+  } catch (error) {
+    const message = error instanceof Error ? error.message : 'Failed to fetch checkout';
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}