Changed INSERT to INSERT...ON CONFLICT DO UPDATE so the migration works for:
- Fresh deployments (inserts new template)
- Existing databases (updates template to fix variable substitution)
Removed unnecessary migration 008.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The original migration already inserted the template with Handlebars conditionals.
This migration updates the existing record to use simple variable substitution.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The TemplateService only supports {{variable}} substitution, not Handlebars-style
conditionals. Changed to use a single {{additionalInfo}} variable that is built
in the service code based on upgrade/downgrade status.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Adds email and in-app notifications when user subscription tier changes:
- Extended TemplateKey type with 'subscription_tier_change'
- Added migration for tier change email template with HTML
- Added sendTierChangeNotification() to NotificationsService
- Integrated notifications into upgradeSubscription, downgradeSubscription, adminOverrideTier
- Integrated notifications into grace-period.job.ts for auto-downgrades
Notifications include previous tier, new tier, and reason for change.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
