CP's Callback handler redirects every new WorkOS session to
APP_URL/orgs, but canvas had no such route — new users hit the canvas
Home component, which tries to call /workspaces on a tenant that
doesn't exist yet, and saw a confusing error. This PR plugs that gap
with a dedicated landing page that:
- Bounces anonymous visitors back to /cp/auth/login
- Zero-org users see a slug-picker (POST /cp/orgs, refresh)
- For each existing org, shows status + CTA:
* awaiting_payment → amber "Complete payment" → /pricing?org=…
* running → emerald "Open" → https://<slug>.moleculesai.app
* failed → "Contact support" → mailto
* provisioning → read-only "provisioning…"
- Surfaces errors inline with a Retry button
Deliberately server-light: one GET /cp/orgs, no WebSocket, no canvas
store hydration. Goal is to move the user from signup to either
Stripe Checkout or their tenant URL with one click each.
Closes the last UX gap between the BILLING_REQUIRED gate landing on
the CP and real users being able to complete a signup today.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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