Logging (#30)

* Added loggin for the onboarding flow.

* Logging for potential errors

* feat: enhance onboarding error logging with server-side capture

* Update app/(onboarding)/onboarding/page.tsx

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

---------

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

app/api/log/route.ts

@@ -0,0 +1,14 @@
+import { NextResponse } from 'next/server'
+
+export async function POST(request: Request) {
+  try {
+    const { message, extra } = await request.json()
+
+    // This console.error runs server-side → visible in Vercel Logs
+    console.error('[onboarding]', message, extra ? JSON.stringify(extra) : '')
+
+    return NextResponse.json({ ok: true })
+  } catch {
+    return NextResponse.json({ ok: false }, { status: 400 })
+  }
+}