- Replace JSON file storage with PostgreSQL (pg package)
- Add db.ts service for connection pool and schema init
- Rewrite keys.ts, verification.ts, usage.ts for async PostgreSQL
- Update all routes for async function signatures
- Add migration script (scripts/migrate-to-postgres.mjs)
- Update docker-compose.yml with DATABASE_* env vars
- Change SLA from 99.9% to 99.5% in landing page
Safety net: provisions pro API key on successful checkout via webhook,
in case user doesn't reach the success page. Idempotent with existing
createProKey logic. Gracefully handles missing STRIPE_WEBHOOK_SECRET.
- Extract customer email from session.customer_details?.email
- Check if Pro key already exists for that email (idempotent)
- Create Pro key only if one does not exist
- Add comprehensive logging for debugging
- Ensures webhook and success page work together without duplicates
- Added /v1/signup/free endpoint for instant API key provisioning
- Built unified key store (services/keys.ts) with file-based persistence
- Refactored auth middleware to use key store (no more hardcoded env keys)
- Refactored usage middleware to check key tier from store
- Updated billing to use key store for Pro key provisioning
- Landing page: replaced mailto: link with signup modal
- Landing page: Pro checkout button now properly calls /v1/billing/checkout
- Added Docker volume for persistent key storage
- Success page now renders HTML instead of raw JSON
- Tested: signup → key → PDF generation works end-to-end
