The webhook's money/status mapping (Basil field relocations, period
extraction, customer-id unwrap, status patch, invoice->payment row,
minor->major) lived inline in the route with zero test coverage - the
biggest untested critical path in the codebase. Extracted to a pure,
SDK-free lib/stripe/webhook-logic.ts (structural input types) and
refactored the route to only do signature verify + network + DB writes.
12 new tests cover the Basil edges and link/unlink + defaults. Behavior
unchanged; suite 514.
Moheeb Zara
0306157a60