[Riverbraid]

Change

The byte auditor now treats Git command failures as unavailable observations, checks that each manifest repository path is its own Git root, requires a valid commit and nonempty tracked-file enumeration, and blocks when a tracked path cannot be hashed as a regular file. Detached HEAD remains valid. Report version 1.1.0 retains existing fields and adds git_root, unhashed_tracked_files, and explicit failure codes.

Evidence

• Base b5c8cde0ebb56ac98bc738545a8e80c10c67b191; proposed head fb9dea4b33a3cd2b561a23e23ca117dbf4c2ebb0 includes all six focused tests.
• Before the fix: non-Git, outer-root, and missing-tracked-file cases failed for the intended reasons. After the fix: six focused cases pass locally, including a dangling tracked symlink and detached HEAD; node --check byte-audit.mjs passes.
• Ring 2 workflow run #185: regression step passed 6/6, Ring 0 compatibility step passed, Ring 2 constellation returned RING_GATE_PASS_VERIFIED for 8/8, Ring 2 byte audit returned BYTE_GATE_BLOCKED (2 verified, 6 blocked). The workflow preserves exact per-repo commits and failure paths in logs even on a block.
• All six blocked repositories have a BOM in .github/workflows/verify.yml (an existing byte-audit failure rule). Lang, p5, and Hydra additionally have TRACKED_FILES_INCOMPLETE for constitution.threshold.json and riverbraid-core. Their Git trees show an absolute /workspaces/Riverbraid-Core/constitution.threshold.json symlink and a gitlink/submodule. The original script silently skipped non-file or absent worktree paths; this patch exposes that missing coverage. No sibling repository was changed.

Boundary

This is a tested source correction proposal, not a full Ring 2 PASS or adopted Core result. Leave the PR draft while the six Ring 2 byte findings and treatment of tracked symlinks/gitlinks are reviewed under their exact source/authority. No registry, Evaluation Kit, RB-IM-0006 operator, E39 authority, native result, F gate, or main branch is changed by this draft. Related documentary finding: Riverbraid-Documentation PR #29.