feat(api): add health check endpoint for diagnostics

apps/web/src/app/api/health/route.ts

@@ -0,0 +1,19 @@
+import { NextResponse } from 'next/server';
+
+export const runtime = 'nodejs';
+export const dynamic = 'force-dynamic';
+
+/**
+ * GET /api/health
+ * Simple health check endpoint that doesn't touch the database
+ */
+export async function GET() {
+  return NextResponse.json({
+    status: 'ok',
+    timestamp: new Date().toISOString(),
+    env: {
+      hasDatabase: !!process.env.DATABASE_URL,
+      nodeEnv: process.env.NODE_ENV,
+    },
+  });
+}