test(audit): regression harness uses CI audit entry point (run_main_audit_workflow)

[chubes4]

Fixes the deep fidelity gap behind #6896/#6906/#6915: the harness audited via audit_path_with_id while CI Audit uses run_main_audit_workflow + reference_paths — so reference-path/symbol-graph regressions could not reproduce locally. Switches the harness to run_main_audit_workflow (matching src/commands/audit.rs), re-captures the snapshot, keeps the skips_test_paths invariant + determinism test. Now a #6855-style structural/symbol-graph regression fails locally. Harness test + fixture only; no detector/config change.

[homeboy-ci]

Homeboy Results — homeboy

Lint

✅ lint — passed

ℹ️ Full options: homeboy docs commands/lint
ℹ️ Save lint baseline: homeboy lint homeboy --baseline
Deep dive: homeboy lint homeboy --changed-since fd23417

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-homeboy-lint-homeboy-Linux contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-homeboy-lint-homeboy-Linux contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/homeboy/actions/runs/28329868847

Test

⚠️ test — baseline red

ℹ️ No tests ran — the runner failed before producing results. See raw_output.stderr_tail / raw_output.stdout_tail for the underlying error (bootstrap failure, missing deps, DB connection, etc.).
ℹ️ To run specific tests: homeboy test homeboy -- --filter=TestName
ℹ️ Auto-fix lint issues: homeboy refactor homeboy --from lint --write
ℹ️ Collect coverage: homeboy test homeboy --coverage
ℹ️ Analyze failures: homeboy test homeboy --analyze
ℹ️ Pass args to test runner: homeboy test -- [args]
ℹ️ Full options: homeboy docs commands/test
Deep dive: homeboy test homeboy --changed-since fd23417

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-homeboy-test-homeboy-Linux contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-homeboy-test-homeboy-Linux contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/homeboy/actions/runs/28329868847

Audit

✅ audit — passed

• core_boundary_leak:core-agnostic-source — 70 finding(s)
• structural — 57 finding(s)
• intra-method-duplication — 47 finding(s)
• field_patterns — 35 finding(s)
• dead_code — 19 finding(s)
• near-duplication — 17 finding(s)
• test_quality — 13 finding(s)
• duplication — 10 finding(s)
• remote_execution_preflight — 9 finding(s)
• thin_command_adapter — 8 finding(s)
• Total: 310 finding(s)

Deep dive: homeboy audit homeboy --changed-since fd23417

Artifacts and drill-down

• CI results artifact: homeboy-ci-results-homeboy-audit-homeboy-Linux contains immediate command JSON for this action invocation.
• Observation artifact: homeboy-observations-homeboy-audit-homeboy-Linux contains exported Homeboy run history for deeper queries.
• Drill-down: download the observation artifact, then run homeboy runs import <dir>, homeboy runs list, and homeboy runs findings <run-id>.
• Artifacts are attached to the workflow run: https://github.com/Extra-Chill/homeboy/actions/runs/28329868847

Tooling versions

• Homeboy CLI: homeboy 0.269.0+2ef12653d00f+78bc59ec5
• Extension: rust from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: dfe9fa31
• Action: unknown@unknown

[chubes4]

Empirical finding: entry point was NOT the gap; the regression is REAL-CODEBASE-SPECIFIC

I tested this directly: cherry-picked the #6915 structural migration onto THIS branch (workflow-entry harness) and ran the harness — it still PASSES (4 tests), even via run_main_audit_workflow. So switching to the CI entry point, while strictly correct and worth keeping, does NOT reproduce the +300 regression on the synthetic fixture either.

Conclusion: the #6855 Phase 1 regression depends on the actual homeboy repository's scale/content (real cross-references, real file sizes hitting GodFile/HighItemCount thresholds, real reference_paths) — it cannot be reproduced by any synthetic fixture, however enriched.

This PR is still a real improvement (the harness should audit via the same entry point CI uses — better fidelity for the class of regressions a fixture CAN catch), so it's worth merging on its own merits.

But the actual unblocker for #6855 is a different harness shape: a test/CI step that audits the REAL homeboy repo tree and asserts zero net drift vs baseline — essentially running the differential Audit gate locally/in-test. That's the only thing that reproduces real-codebase-specific regressions. Recommend that as the next step (it overlaps with #6858 'fast audit preview/reconcile').