test: delete empty KNOWN_KA4_VIOLATIONS scaffold (Fixes #154)

[christian-byrne]

Fixes #154.

Test-file-only change in test/ka4-rejection-byte-identity.test.ts:

• Remove the empty KNOWN_KA4_VIOLATIONS placeholder constant, its future-facing rationale comment, and the sole assertion that checked .length === 0 (tautological — it only ever re-stated the constant's initializer).
• Reword the two historical comments that referenced the placeholder so the identifier is fully gone from test/.
• Leave the CASES table and its kinds-completeness checks untouched, per the issue.

Verification (fresh clone at 4165c4f + this commit):

• npx vitest run test/ka4-rejection-byte-identity.test.ts → 40/40 pass.
• rg -n "KNOWN_KA4_VIOLATIONS" test/ → no matches.

Assignee per quiet-week rules: christian-byrne only.

Summary by CodeRabbit

• Tests
  • Updated KA-4 rejection test documentation to reflect that issue #10 violations are handled as ordinary cases.
  • Removed obsolete assertions related to an empty known-violations list.

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• test/ka4-rejection-byte-identity.test.ts

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📝 Walkthrough

Walkthrough

The KA-4 rejection test now documents issue #10 rows as part of CASES. It removes the empty KNOWN_KA4_VIOLATIONS declaration, its explanatory comment, and its empty-state assertion.

Changes

KA-4 test cleanup

Layer / File(s)	Summary
Update CASES documentation and remove obsolete scaffold test/ka4-rejection-byte-identity.test.ts	The test documents migrated issue #10 rows in CASES and removes the unused known-violations placeholder and assertion.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 1d550

This cleanup removes obsolete KA-4 test scaffolding without changing rejection coverage or runtime behavior. No merge-blocking risk remains.

Suggested reviewers: skishore23

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the deletion of the empty KNOWN_KA4_VIOLATIONS scaffold and references issue #154.
Linked Issues check	✅ Passed	The changes satisfy issue #154. They remove the empty KNOWN_KA4_VIOLATIONS constant, its future-facing comment, and its tautological assertion while preserving the CASES table and completeness checks.
Out of Scope Changes check	✅ Passed	The changes remain within scope. They only remove the obsolete scaffold and update related comments in the specified test file.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch rush/cmp-154-delete-empty-ka4-scaffold

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