SWE-Marathon Stripe reference application and contract tests
Source: https://github.com/abundant-ai/swe-marathon
Revision: 5c468fae8656ef9f7bca36cc8c6ee6e7478aa0f6
License: Apache License, Version 2.0 (included as LICENSE)

These are the upstream human-written reference solution and tests, not the
source of a successful agent submission. All imported files are unchanged;
upstream.json records original paths and cryptographic hashes.
Task instructions and upstream launch, solution, and artifact-export scripts
are omitted because SREGym supplies its own application and test entry points.

SREGym's separate docker/stripe-marathon/backend.py adds PostgreSQL durability,
transactional API responses and a separate worker. receiver.py provides a local
durable webhook sink. They are SREGym adaptations, not upstream functionality.
