TASK-ETH-001: 4 discovery bias tests (genre/tag browse, emerging artist visibility,
metrics not exposed in JSON). Verifies chronological ordering regardless of play count.
TASK-ETH-002: 4 search fairness tests (artist 0 plays discoverable, zero-play tracks
not filtered, default sort is chronological, no popularity bias in default ranking).
TASK-ETH-003: veza-docs/DISCOVERY_ALGORITHM.md — documents all 6 discovery mechanisms,
ethical constraints, and forbidden patterns per ORIGIN specs.
TASK-COV-001: CI coverage gates — Go >= 70% (backend-ci.yml), Rust >= 50% (rust-ci.yml
with cargo-tarpaulin). Extended Go test scope to core/ and middleware/.
TASK-COV-002: Coverage badge JSON artifact on main push (shields.io compatible).
All 8 ethical tests PASS. Build clean.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
