docs: refresh catalog song response reference hash
The catalog-song reference incorrectly lists 404 for empty results and omits the handler's 500 response. Refresh its single OpenAPI source-file hash in the shared published-docs fixture for the coordinated Marketing correction. API behavior and fixture examples/schemas are unchanged.
Validation on this base: 171 contract tests, response-contract typecheck, required lint and whitespace checks pass; fixture formatting also passes. The branch is based on API #1078's actual accepted merge bcc3052256863540e15905b8ac945b183e8dc1b1.
Release this fixture before Marketing #214, then refresh Marketing's inventory from the candidate to this PR's actual merge. Retained Docs #395 follows the actual Marketing merge. CI and independent source review are separate from hosted catalog behavior.
Summary by cubic
Refreshes the catalog song OpenAPI reference hash in the shared published-docs fixture to match the corrected documentation, which no longer lists 404 for empty results and now documents the handler's 500 response. API behavior and fixture examples/schemas are unchanged.
Rollout
- The companion API change (API #1078) is not merged yet; finalize this branch against its accepted merge before releasing.