Upgrade templ to v0.3.960 and update related generated files. Bump Go
version to 1.25.2 and update dependencies: sentry-go, stripe-go, and
golang.org/x/* packages. Exclude "thoughts" dir from air build. Refactor
payment view to always show Stripe status badge.
Introduce Stripe integration for automatic payment ingestion and refund
tracking. Adds new fields to the payment model for Stripe IDs and
status,
Stripe client driver, sync service, cron job, manual API endpoint, and
public webhook handler for real-time updates. Includes tests and
documentation. Manual cash entry remains supported.
