fix: remove dead vector migrate command

harness/tests/test_taskdoc.py

@@ -73,3 +73,20 @@ def test_task_doc_excludes_stale_decisions_post_rollback(tmp_path):
     # la decisione stale di fase 7 NON deve apparire nel brief
     assert "sql_approved" not in doc.body
     assert "phase:7" not in doc.body
+
+
+def test_taskdoc_slices_to_promoted_tables(tmp_path):
+    s = tmp_path / "sess"
+    s.mkdir()
+    (s / "question.md").write_text("q")
+    (s / "schema_linking.json").write_text(
+        '{"question":"q","candidates":['
+        '{"kind":"table","name":"pazienti","decision":"promoted"},'
+        '{"kind":"table","name":"ricoveri","decision":"promoted"}],'
+        '"joins":[],"excluded":[],"open_questions":[]}'
+    )
+
+    doc = generate_task_doc(session_dir=s, phase=4, promoted_tables=["pazienti"])
+
+    assert "pazienti" in doc.body
+    assert "ricoveri" not in doc.body