- Fix getBaseUrl() ReferenceError by changing to resolveBaseUrl(req) for free-to-paid upgrades
- Add subscription lookup by customer email when dodoSubscriptionId is missing
- Log critical issues when paid users have no subscription ID in database or Dodo
- Return clear error message to contact support when subscription cannot be found
- Prevent silent failures in plan changes from settings page
- Moved sticky positioning from mobile-only to global CSS for .top-left-actions
- Buttons now stay fixed at top above content on all screen sizes
- Includes various other app updates (version management, server improvements)
