feat(vwb): harden supervised verdict evidence

tests/unit/test_competence_verdicts.py

@@ -30,6 +30,14 @@ def _payload(**overrides):
                 "process_name": "explorer.exe",
             },
         },
+        "workflow_id": "preview_competence_key_win_r_wait_explorer_exe",
+        "step_results": [
+            {
+                "step_id": "step_1_key_combo",
+                "action_type": "keyboard_shortcut",
+                "status": "success",
+            }
+        ],
         "comments": "Supervised replay ok",
     }
     payload.update(overrides)
@@ -52,6 +60,14 @@ def test_store_competence_verdict_appends_jsonl(tmp_path):
     assert record["write_back_enabled"] is False
     assert record["yaml_write"] is False
     assert record["duplicate"] is False
+    assert record["workflow_id"] == "preview_competence_key_win_r_wait_explorer_exe"
+    assert record["step_results"] == [
+        {
+            "step_id": "step_1_key_combo",
+            "action_type": "keyboard_shortcut",
+            "status": "success",
+        }
+    ]
     assert record["context_signature"]["machine_id"] == "DESKTOP-58D5CAC_windows"
 
     records = iter_competence_verdicts(log_path=log_path)
@@ -79,6 +95,23 @@ def test_store_competence_verdict_is_idempotent(tmp_path):
     assert second["comments"] == "Supervised replay ok"
 
 
+def test_store_competence_verdict_rejects_same_id_for_other_competence(tmp_path):
+    log_path = tmp_path / "verdicts.jsonl"
+
+    store_competence_verdict(
+        "key_win_r_wait_explorer_exe",
+        _payload(),
+        log_path=log_path,
+    )
+
+    with pytest.raises(CompetenceVerdictError, match="deja utilise"):
+        store_competence_verdict(
+            "key_ctrl_s_wait_notepad_exe",
+            _payload(),
+            log_path=log_path,
+        )
+
+
 @pytest.mark.parametrize("kind", ["valid", "invalid", "inconclusive"])
 def test_store_competence_verdict_accepts_three_kinds(tmp_path, kind):
     record = store_competence_verdict(
@@ -115,3 +148,12 @@ def test_store_competence_verdict_rejects_yaml_write_attempt(tmp_path):
 
     assert record["write_back_enabled"] is False
     assert record["yaml_write"] is False
+
+
+def test_store_competence_verdict_requires_step_results_list(tmp_path):
+    with pytest.raises(CompetenceVerdictError, match="step_results"):
+        store_competence_verdict(
+            "key_win_r_wait_explorer_exe",
+            _payload(step_results={"step_id": "not_a_list"}),
+            log_path=tmp_path / "verdicts.jsonl",
+        )