fix(harness): preserve run_name and artifact_dir on _run_entry result

slack.py and reporting.py read these top-level keys from session summary
entries. artifact_dir is required to locate results.json for Slack posts;
run_name is used for summary tables. dataset/preset fall back to test_config
so they don't need explicit augmentation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: charlesbluca

nemo_retriever/src/nemo_retriever/harness/run.py

@@ -541,6 +541,8 @@ def _run_entry(
     resolved_run_name = run_name or cfg.dataset_label
     normalized_tags = _normalize_tags(tags)
     result = _run_single(cfg, artifact_dir, run_id=resolved_run_name, tags=normalized_tags)
+    result["run_name"] = resolved_run_name
+    result["artifact_dir"] = str(artifact_dir.resolve())
     return result
 
 

nemo_retriever/tests/test_harness_run.py

@@ -322,10 +322,7 @@ def test_run_entry_session_artifact_dir_uses_run_name(monkeypatch, tmp_path: Pat
     )
     monkeypatch.setattr(harness_run, "load_harness_config", lambda **_: cfg)
 
-    captured_artifact_dir: list[Path] = []
-
     def _fake_run_single(_cfg: HarnessConfig, _artifact_dir: Path, run_id: str, tags: list[str] | None = None) -> dict:
-        captured_artifact_dir.append(_artifact_dir)
         assert tags == []
         return {
             "success": True,
@@ -336,15 +333,15 @@ def _fake_run_single(_cfg: HarnessConfig, _artifact_dir: Path, run_id: str, tags
 
     monkeypatch.setattr(harness_run, "_run_single", _fake_run_single)
 
-    harness_run._run_entry(
+    result = harness_run._run_entry(
         run_name="jp20_single",
         config_file=None,
         session_dir=tmp_path,
         dataset="jp20",
         preset="single_gpu",
     )
 
-    assert captured_artifact_dir[0].name == "jp20_single"
+    assert Path(result["artifact_dir"]).name == "jp20_single"
 
 
 def test_run_entry_returns_tags(monkeypatch, tmp_path: Path) -> None: