Add version-pinned reconciliation decisions

fixtures/golden/monthly-reconciliation/expected-output.json

@@ -23,7 +23,14 @@
       "case_id": "A-1",
       "status": "open",
       "amount": 10
-    }
+    },
+    "_decision_state": "unreviewed",
+    "_decision_action": null,
+    "_decision_ref": null,
+    "_decision_actor_ref": null,
+    "_decision_at": null,
+    "_decision_reason": null,
+    "_decision_correction": null
   },
   {
     "case_id": "A-2",
@@ -58,7 +65,14 @@
       "case_id": "A-2",
       "status": "closed",
       "amount": 25
-    }
+    },
+    "_decision_state": "applied",
+    "_decision_action": "accept",
+    "_decision_ref": "decision:monthly-2026-07:A-2:1",
+    "_decision_actor_ref": "account:synthetic-reviewer",
+    "_decision_at": "2026-07-31T10:00:00Z",
+    "_decision_reason": "Synthetic fixture decision after source comparison.",
+    "_decision_correction": null
   },
   {
     "monthly_case_id": "A-3",
@@ -77,6 +91,13 @@
       "case_id": "A-3",
       "status": "open",
       "amount": 30
-    }
+    },
+    "_decision_state": "unreviewed",
+    "_decision_action": null,
+    "_decision_ref": null,
+    "_decision_actor_ref": null,
+    "_decision_at": null,
+    "_decision_reason": null,
+    "_decision_correction": null
   }
 ]

fixtures/golden/monthly-reconciliation/graph.json

@@ -73,11 +73,39 @@
         "right_prefix": "monthly_"
       }
     },
+    {
+      "id": "decisions",
+      "type": "source.inline",
+      "label": "Review decisions",
+      "position": {"x": 1020, "y": 360},
+      "config": {
+        "source_name": "review_decisions",
+        "fixture": "review-decisions.json",
+        "rows": []
+      }
+    },
+    {
+      "id": "apply-decisions",
+      "type": "reconcile.decisions",
+      "label": "Apply current decisions",
+      "position": {"x": 1260, "y": 160},
+      "config": {
+        "decision_key_column": "key_hash",
+        "decision_input_column": "input_hash",
+        "decision_ref_column": "decision_ref",
+        "action_column": "action",
+        "actor_column": "actor_ref",
+        "decided_at_column": "decided_at",
+        "reason_column": "reason",
+        "correction_column": "correction",
+        "allowed_actions": ["accept", "reject", "correct", "defer"]
+      }
+    },
     {
       "id": "output",
       "type": "output",
       "label": "Review differences",
-      "position": {"x": 1260, "y": 160},
+      "position": {"x": 1500, "y": 160},
       "config": {}
     }
   ],
@@ -112,6 +140,18 @@
     {
       "id": "e6",
       "source": "reconcile",
+      "target": "apply-decisions",
+      "target_port": "records"
+    },
+    {
+      "id": "e7",
+      "source": "decisions",
+      "target": "apply-decisions",
+      "target_port": "decisions"
+    },
+    {
+      "id": "e8",
+      "source": "apply-decisions",
       "target": "output"
     }
   ]

fixtures/golden/monthly-reconciliation/inputs/review-decisions.json

@@ -0,0 +1,12 @@
+[
+  {
+    "key_hash": "20f1552752978558506b159b92bc738d34f484d3d76068173b0c96e1fc4a8c2d",
+    "input_hash": "182de78bc3297d90cd4b02392bfb4a53fc9d9c29851d567f68e10be477a57dd8",
+    "decision_ref": "decision:monthly-2026-07:A-2:1",
+    "action": "accept",
+    "actor_ref": "account:synthetic-reviewer",
+    "decided_at": "2026-07-31T10:00:00Z",
+    "reason": "Synthetic fixture decision after source comparison.",
+    "correction": null
+  }
+]