Moves all payment-related logic (manual payments, Stripe sync, webhook
handling) from the booking service into a dedicated payment service
(`internal/service/payment`). Updates server, cron, and handler wiring
to
inject and use the new payment service. Adjusts tests, routes, and
documentation to reflect the new separation of concerns.
This improves cohesion, clarifies responsibilities, and prepares for
future payment features. No database schema changes are introduced.
- Add `APP_STRIPE_ACCOUNT_ID` to config and README.
- Pass Stripe account ID to payment view models.
- Show "View in Stripe" badge linking to the payment in Stripe dashboard
for card payments when account ID and payment ID are present.
- Update Makefile to run format/lint locally instead of in container.
- Update templates and generated code to support new dashboard link.
