feat(planner): persist reusable action semantics

tests/test_cloud_repository_contract.py

@@ -1773,12 +1773,21 @@ def test_record_planner_decision_stores_rationale_and_thinking(
             now=now,
             rationale="Previous step opened settings. Now tapping account.",
             thinking="I need to navigate to account settings.",
+            purpose="Open account settings.",
+            expected_outcome="The account settings page is visible.",
         )
 
-        decisions = database.repository.list_planner_decisions(task_id=task_id, attempt=1)
+        decisions = database.repository.list_planner_decisions(
+            task_id=task_id, attempt=1
+        )
         assert len(decisions) == 1
-        assert decisions[0].rationale == "Previous step opened settings. Now tapping account."
+        assert (
+            decisions[0].rationale
+            == "Previous step opened settings. Now tapping account."
+        )
         assert decisions[0].thinking == "I need to navigate to account settings."
+        assert decisions[0].purpose == "Open account settings."
+        assert decisions[0].expected_outcome == "The account settings page is visible."
     finally:
         database.close()
 
@@ -1804,9 +1813,13 @@ def test_record_planner_decision_stores_null_rationale_and_thinking(
             # rationale and thinking omitted (default None)
         )
 
-        decisions = database.repository.list_planner_decisions(task_id=task_id, attempt=1)
+        decisions = database.repository.list_planner_decisions(
+            task_id=task_id, attempt=1
+        )
         assert len(decisions) == 1
         assert decisions[0].rationale is None
         assert decisions[0].thinking is None
+        assert decisions[0].purpose is None
+        assert decisions[0].expected_outcome is None
     finally:
         database.close()