fix: remove dead vector migrate command

harness/tests/test_qdrant_cli_commands.py

@@ -163,3 +163,19 @@ def test_memory_clear_accepts_qdrant_only_runtime_config(tmp_path, monkeypatch):
     assert res.exit_code == 0, res.output
     assert store.deleted == [("memory", ["memory"])]
     assert not registry.exists()
+
+
+def test_vector_help_does_not_expose_migrate_and_keeps_qdrant_commands():
+    res = CliRunner().invoke(app, ["vector", "--help"])
+
+    assert res.exit_code == 0, res.output
+    assert "migrate" not in res.output
+    assert "init" in res.output
+    assert "index-schema" in res.output
+
+
+def test_vector_migrate_command_is_absent():
+    res = CliRunner().invoke(app, ["vector", "migrate", "--help"])
+
+    assert res.exit_code != 0
+    assert "No such command 'migrate'" in res.output