Allow explicit operator resume after technical response repairs

tests/test_lifecycle_checkpoints.py

@@ -270,3 +270,39 @@ def test_empty_array_details_rejected(admitted):
     with pytest.raises(LifecycleError):
         store.advance("case-A", "stable-package", State.BUILDING_CASE, step_id="bad", details=[])
     assert store.latest("case-A", "stable-package") == original
+
+
+@pytest.mark.parametrize("reason", ["INVALID_LLM_RESPONSES", "RESEARCH_UNAVAILABLE", "AWAITING_TEST_FEEDBACK"])
+def test_manual_repair_retry_is_explicit_scoped_and_preserves_content(admitted,reason):
+    _, store, _ = admitted
+    blocked = store.advance("case-A", "stable-package", State.BLOCKED, step_id="repair-block",
+        reason=reason, retry_not_before="2099-01-01T00:00:00Z")
+    with pytest.raises(LifecycleError):
+        store.advance("case-A", "stable-package", State.VALIDATED, step_id="automatic-too-early")
+    if reason != "INVALID_LLM_RESPONSES":
+        with pytest.raises(LifecycleError):
+            store.advance("case-A", "stable-package", State.VALIDATED, step_id="not-repairable",manual_retry=True)
+        assert store.latest("case-A", "stable-package") == blocked
+        return
+    with PackageReader(blocked) as reader:
+        before = reader.manifest
+    resumed = store.advance("case-A", "stable-package", State.VALIDATED, step_id="operator-repaired",manual_retry=True)
+    assert store.advance("case-A", "stable-package", State.VALIDATED, step_id="operator-repaired",manual_retry=True) == resumed
+    with PackageReader(resumed) as reader:
+        assert reader.read_bytes("unknown") == b"keep"
+        assert reader.manifest["analysis_revision"] == before["analysis_revision"]
+        assert reader.manifest["artifacts"].keys() == before["artifacts"].keys()
+        assert reader.manifest["routing"]["retry_not_before"] is None
+        assert checkpoint_chain(reader)[0][1]["details"]["manual_retry"] is True
+    assert PackageValidator().validate(resumed).valid
+
+
+@pytest.mark.parametrize("changes", [{"additions":{"other":b"no"}}, {"artifacts":{"case":"other"}}, {"manual_retry":1}])
+def test_manual_repair_retry_cannot_mutate_artifacts(admitted,changes):
+    _, store, _ = admitted
+    blocked = store.advance("case-A", "stable-package", State.BLOCKED, step_id="block-repair",
+        reason="INVALID_LLM_RESPONSES",retry_not_before="2099-01-01T00:00:00Z")
+    with pytest.raises(LifecycleError):
+        store.advance("case-A", "stable-package", State.VALIDATED, step_id="bad-repair",
+                      **{**{"manual_retry":True},**changes})
+    assert store.latest("case-A", "stable-package") == blocked