harness: Issue 검증 증빙을 checkout 밖에 보관

harness/agents/impl/skills/gitea-issue-rework/templates/evidence-plan.json

@@ -1,6 +1,6 @@
 {
   "environment": ["os", "kernel", "architecture", "python"],
-  "command_env_allowlist": ["PATH", "HOME", "TMPDIR", "LANG", "VIRTUAL_ENV", "UV_CACHE_DIR"],
+  "command_env_allowlist": ["PATH", "HOME", "TMPDIR", "LANG", "VIRTUAL_ENV", "UV_CACHE_DIR", "PYTHONDONTWRITEBYTECODE"],
   "secret_env_names": ["PROJECT_TEST_TOKEN"],
   "forbidden_regexes": [],
   "hash_paths": ["src/project.py", "tests/test_project.py"],
@@ -8,7 +8,7 @@
     {
       "id": "focused-tests",
       "purpose": "Run the focused verification",
-      "argv": ["python3", "-m", "unittest", "tests.test_project", "-v"],
+      "argv": ["python3", "-B", "-m", "unittest", "tests.test_project", "-v"],
       "expected_exit_code": 0,
       "max_output_bytes": 65536,
       "claims": ["focused-result"]