Can I vibecode OnceHub?

Build a sophisticated, enterprise-grade personal scheduling substitute for OnceHub in an empty repository.
Use exactly this stack: Next.js 15, TypeScript, PostgreSQL, Drizzle ORM, Google Calendar OAuth, and Resend.
The primary job is to move beyond simple calendar booking and build an intelligent routing and lead qualification scheduling layer.

Core features to implement:
1. Intelligent Routing Forms: Create an interactive, no-code-style screening form (chatbot-like or multi-step) that asks visitors qualifying questions (e.g., company size, urgency) and dynamically routes them to specific meeting types or rejects unqualified leads.
2. Advanced Availability Engine: Connect Google Calendar using OAuth (storing refresh tokens securely). Calculate availability in UTC and render it in the visitor's detected timezone, with configurable buffers, minimum notice, and working hours.
3. Omnichannel Engagement: Support distinct scheduling entry points, including a direct web link, an embeddable widget, and an "instant call" placeholder state.
4. Robust Notifications: Send transactional confirmation, cancellation, and reminder emails with signed management links to ensure high-stakes engagements are never missed.
5. Admin Dashboard: Build an interface to manage booking types, view an audit log of all scheduling events, and reconnect the calendar.

Technical constraints:
- Make the first run work locally with one documented command. Store all user data locally by default and make export straightforward.
- Put secrets in .env, ship .env.example, and never commit credentials.
- Add input validation, safe filenames, and graceful handling of unavailable APIs.
- Include clear empty, loading, success, and recoverable error states.
- Write focused tests for the core routing transformation and one end-to-end happy path.
- Deliberately leave out multi-host meetings, CRM workflows, SSO/HIPAA compliance, and team round-robin routing.
- Create a README with setup, architecture, permissions, data location, and backup steps.
- Finish by running the tests and listing the exact commands used.