- Fix "Manage Billing" button error for trial orgs without Stripe customer;
add fallback to retrieve customer from subscription, show helpful message
for trial users, and surface real error messages in the UI
- Add "Balance As-Of Date" field to onboarding wizard so opening balance
journal entries use the correct statement date instead of today
- Add "Total Unit Count" field to onboarding wizard assessment group step
so cash flow projections work immediately
- Remove broken budget upload step from onboarding wizard (was using legacy
budgets endpoint); replace with guidance to use Budget Planning page
- Replace bare "No budget plan lines" text with rich onboarding-style card
featuring download template and upload CSV action buttons
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>