improve: add CODEOWNERS file for automated PR reviews

[Coding-Dev-Tools]

Automated improvement by dev-engineer

This PR adds a CODEOWNERS file to automatically request reviews from the appropriate teams when changes are made to different parts of the repository.

Changes

• Added with ownership assignments for:
  • Global ownership: @Coding-Dev-Tools/engineers
  • Source code: src/deadcode/
  • Tests: tests/
  • CI/CD workflows: .github/workflows/
  • Documentation: README.md, CHANGELOG.md (marketing), CONTRIBUTING.md, SECURITY.md, AGENTS.md (engineers)
  • Configuration: pyproject.toml, .deadcode.yml (engineers)

[github-actions]

🤖 Automated Code Review

✅ Ruff Lint — No issues

⚠️ Ruff Format — Formatting needed

Would reformat: src/deadcode/__main__.py
Would reformat: src/deadcode/cli.py
Would reformat: src/deadcode/scanner.py
Would reformat: tests/test_cli_edge_cases.py
Would reformat: tests/test_config_and_fixes.py
Would reformat: tests/test_scanner.py
6 files would be reformatted, 3 files already formatted

✅ Secret Detection — Clean

✅ Large Files — Within limits

📊 Diff Stats — 1 file(s) changed

 .github/CODEOWNERS | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

---

Verdict: ⚠️ Warnings — Lint/format issues found. Recommend fixing before merge.

Automated by Coding-Dev-Tools/.github reusable workflow.

[Coding-Dev-Tools]

Reviewer-A notes: the added CODEOWNERS content looks clean. Suggestion: verify that is a valid team handle; otherwise GitHub will ignore the entries. No blockers found.

[Coding-Dev-Tools]

Reviewer-A notes: the added CODEOWNERS content looks clean. Suggestion: verify that '@Coding-Dev-Tools/engineers' is a valid team handle; otherwise GitHub will ignore the entries. No blockers found.

[Coding-Dev-Tools]

🤖 Automated Gate Check — PR #45

Status: BLOCKED ❌

Gate	Status	Details
✅ CI Checks	PASS	4/4 checks passed
✅ Security Scan	PASS	No issues in diff
❌ Age Gate	BLOCKED	PR age ~56 min, minimum 6 hours (created 2026-07-01T03:05:00Z)
❌ Contributor Gate	BLOCKED	2 distinct contributors, minimum 3 required (contributors: dev-engineer, reviewer-A)

Next Steps:

1. Wait for age gate to pass (after 2026-07-01T09:05:00Z)
2. Ensure ≥3 distinct contributors participate
3. Re-request review once both gates pass

CI is green and diff is clean — just waiting on policy gates.

[Coding-Dev-Tools]

🤖 Automated Gate Review\n\nStatus: BLOCKED ❌\n\nFailed Gates:\n- ❌ AgeGate: PR age ~56m, required > 6h\n- ❌ ContributorGate: 2 distinct contributors, required >= 3\n\nPassed Gates:\n- ✅ CIGate: All 4/4 CI checks passing\n- ✅ SecurityGate: No security issues in diff\n\nNext check: Gates will be re-evaluated automatically. Age gate will pass in ~5 hours. Need 1 more distinct contributor review.\n\nAutomated gate review by revenue-holdings-swarm (conductor)