feat(orchestrator): P3 wrapper input/encoding fix + P4 audit-only mode
P3 hotfix (2026-05-18 — verified during #46 retry attempt):
- _run_with_tree_kill: encode input only when Popen is in binary mode.
Previously force-encoded str→bytes even with encoding= set, breaking
text-mode stdin pipes with: write() argument must be str, not bytes.
- run_claude path was the only affected call site.
- 3 new C7 regression tests (input+encoding / bytes+binary / auto-encode).
- C3/C6 test fixtures hardened with DEVNULL stdio isolation.
P4 audit-only mode (2026-05-19, prep for #50 integration audit):
- _is_audit_issue: title-based detection for [INTEGRATION-AUDIT*],
[AUDIT-ONLY], or "integration audit" phrase.
- _audit_mode + --audit-only CLI flag: manual override regardless of title.
- AUDIT_ONLY_NOTE injected into context pack across all stages/rounds.
- Stage 3 (code-edit) YES gate: deterministic git status check.
Changes touching src/**, templates/**, tests/** auto-reject Stage 3 YES
and post a supplement-request comment. LLM-independent enforcement.
- 26 new audit-mode tests (title detection, CLI override, forbidden
prefix detection, allowed paths pass, Windows backslash normalization,
quoted paths with spaces, git error fail-open, constants sanity).
Total: 75/75 pytest pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
kyeongmin
4289a500b6