Refactor the dnd scene_map prompt to use the common cached system message and transcript

schemas/pipeline-dnd/analyze/scene_map.schema.json

@@ -36,13 +36,6 @@
         "last_segment_id": {
           "type": "integer",
           "description": "The final transcript segment covered by the scene map."
-        },
-        "limitations": {
-          "type": "array",
-          "description": "Known limitations affecting scene segmentation.",
-          "items": {
-            "type": "string"
-          }
         }
       }
     },
@@ -86,16 +79,9 @@
             "type": "string",
             "enum": [
               "Recap",
-              "Combat",
-              "Social",
-              "Exploration",
-              "Downtime",
-              "Travel",
               "Planning",
-              "Preparation",
-              "Rest",
-              "Rules",
-              "Mixed"
+              "Combat",
+              "Narrative"
             ],
             "description": "The dominant mode of play in the scene."
           },