É-kwanza Payment Integration

This skill packages the É-kwanza / pay4all "Pagamento Integrado v2.7" API so it can be dropped into any backend (the examples below are NestJS/TypeScript, matching Idarcio's usual stack, but the same calls work in Express, Fastify, or any other Node backend).

Full endpoint-by-endpoint reference (request/response shapes, HTTP status/error codes) lives in references/api-reference.md — read it before implementing an endpoint you haven't built before, since the status codes and field names are non-obvious (e.g. status: "180" means invalid signature, not a real HTTP concept).

What this API covers

There are two separate payment families in this doc — don't mix their auth/signing rules up: