Adding a vendor (internal)
Engineers onboarding a new Connect vendor should follow the 11-step playbook inqualifi-connectors/apps/standard-integration/docs/humanly-connect-vendor-playbook.md:
- Handlers in
controllers/{vendor}/(business logic) - Mount
/qsi/{vendor}/*for direct customers - Copy
connect/_template/→connect/{vendor}/for meta-routes + dual-mount - Document here and in cURL examples
/qsi/* and /connect/*).

