Use socket picture labels in ref summaries

tests/test_dumas_image_nodes.py

@@ -356,6 +356,41 @@ class DumasImageNodeTests(unittest.TestCase):
         required = self.image_nodes.DumasLocationReferenceNode.INPUT_TYPES()["required"]
         self.assertNotIn("picture_id", required)
 
+    def test_normalize_reference_upgrades_generic_summary_with_socket_picture_id(self):
+        image = FakeTensorBatch()
+
+        reference = self.image_nodes.normalize_reference(
+            {
+                "kind": "character",
+                "name": "Dave",
+                "image": image,
+                "summary": "Dave reference.",
+            },
+            picture_id=3,
+            allow_image_fallback=False,
+        )
+
+        self.assertEqual(reference["picture_id"], 3)
+        self.assertEqual(reference["picture_label"], "<Picture 3>")
+        self.assertEqual(reference["summary"], "Dave shown in <Picture 3>.")
+
+    def test_normalize_reference_keeps_custom_summary_when_socket_picture_id_is_added(self):
+        image = FakeTensorBatch()
+
+        reference = self.image_nodes.normalize_reference(
+            {
+                "kind": "character",
+                "name": "Dave",
+                "image": image,
+                "summary": "Primary hero look for the opening close-up.",
+            },
+            picture_id=3,
+            allow_image_fallback=False,
+        )
+
+        self.assertEqual(reference["picture_id"], 3)
+        self.assertEqual(reference["summary"], "Primary hero look for the opening close-up.")
+
     def test_anchor_style_node_exposes_requested_presets(self):
         input_types = self.image_nodes.DumasAnchorStyleNode.INPUT_TYPES()
         options = input_types["required"]["anchor_style"][0]