feat(payments): add send/list/get/complete/cancel API with idempotency

[js360000]

Summary

feat(payments): add send/list/get/complete/cancel API with idempotency

Diff

 lib/db/db-client.ts                |  78 ++++++++++++++++++++++++-
 lib/db/schema.ts                   |  25 ++++++++
 routes/payments/cancel.ts          |  24 ++++++++
 routes/payments/complete.ts        |  24 ++++++++
 routes/payments/get.ts             |  23 ++++++++
 routes/payments/list.ts            |  30 ++++++++++
 routes/payments/send.ts            |  38 +++++++++++++
 tests/routes/payments/send.test.ts | 113 +++++++++++++++++++++++++++++++++++++
 8 files changed, 353 insertions(+), 2 deletions(-)

Claim

/claim #1