fix(doctor,scan): report ignored koru runtime files that are still tracked (ticket-442)

[tom-sapletta-com]

Problem

.koru/ is in .gitignore in semcod/prefact, repatch, tagi, nxdo, subactor/orchestrator and coru-agent/coru-dev, but .koru/event-store.jsonl and .koru/events/* were committed before that entry. Git keeps tracking them, so every koru run leaves the primary checkout dirty, which blocks work-start / worktree admission (LIM-WORKTREE-004). koru doctor / scan only checked that the .gitignore line exists.

Change

• tracked_ignored_runtime_files() (git ls-files -ci --exclude-standard -- .koru .planfile/.koru).
• check_gitignore → WARN with a git rm --cached hint; scan_gitignore_drift → a hygiene suggestion listing the files.
• No automatic untracking.

Evidence

Real repositories: prefact 4, tagi 11, orchestrator 15 files reported. Tests: 127 passed (3 new); Ruff clean on changed files; governance GOV-PASS.

Ticket: ticket-442

🤖 Generated with Claude Code

[ifuri-validator-agent]

Validator approval after policy checks for exact head 4c1957692d40a2f4d2edc65019cb9afe524653c9.

Ticket: ticket-442
Correlation ID: local-semcod-koru-pr-702-ticket-442
Model: openai/cursor-auto
Reviewed diff chunks: 1
Advisory LLM verdict: APPROVE
Advisory summary: Reviewed all 1 diff chunk(s). The implementation correctly detects ignored-but-tracked runtime files under .koru and .planfile/.koru, reports them through doctor and scan without automatically modifying repositories, and includes focused coverage for tracked, untracked, and non-Git cases. All protected required checks passed.
Advisory findings: none
The LLM output above is advisory and was not used as the approval trust root.
Semantic review prerequisite: not_required; policy 676cb4516bbfed2a000e40b9b1b6e4a430ecc761ec546aeb53d721a1905cfdd7.

Actual PR impact radar

Exact range: 1d9ff59e6fa782444a86d3f6f0131480ad63e12e...4c1957692d40a2f4d2edc65019cb9afe524653c9
Change digest: 01b8cf7e44ec439b6e3edd0b3a2c52ade47320e1e4ddd3496c5c4c9b28cd1042
Score: 64/100 (L), estimated 94 min, split recommended: true
Affected services/components: repository-wide/unclassified

Machine-readable radar JSONL and SVG

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Merge will be attempted after this approval when explicitly authorized. ## Decision record (recomputable)

DECISION D-442-0931
TICKET ticket-442
HEAD_SHA 4c1957692d40a2f4d2edc65019cb9afe524653c9
CORRELATION_ID local-semcod-koru-pr-702-ticket-442
ACTOR agent:ifuri-validator-agent[bot]
APPLIED_RULE P-CORE-015
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INPUT observed_checks = ["governance / enforce=PASS","governance / remote lifecycle=PASS","standard packs / conformance=PASS","onedev/local-verify=PASS"]
INPUT required_checks = ["onedev/local-verify","standard packs / conformance"]
INPUT required_checks_source = "protected registry + GitHub applied rules (env/request)"
INPUT reviewer_login = "ifuri-validator-agent[bot]"
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VERDICT APPROVE AUTHORITY DETERMINISTIC
REJECTED REQUEST_CHANGES BECAUSE NO_UNSAFE_CHANGE_REASON_FOUND
ADVISORY llm_verdict = "APPROVE" MODEL "openai/cursor-auto"
ASSERT VERDICT_AUTHORITY != "ADVISORY"