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

prompts/pipeline-dnd/analyze/scene_map/scene_map.yml

@@ -1,6 +1,6 @@
 id: dnd.scene_map
 version: "1.0.0"
-default_profile: gemma-4-31b
+default_profile: nemotron-3-ultra
 description: Generates a D&D session scene map, using a transcript as input.
 inputs:
   - name: transcript
@@ -9,18 +9,18 @@ inputs:
     description: Structured recap source transcript
 messages:
   - role: system
-    content_file: ./scene_map.system.md
-  - role: user
-    content_file: ./scene_map.user.md
+    content_file: ../common/transcript.system.md
   - role: user
     content: |
       <<<CURRENT_SESSION_TRANSCRIPT
-
       {{input "transcript"}}
-
       CURRENT_SESSION_TRANSCRIPT>>>
+  - role: user
+    content_file: ./scene_map.task.md
+  - role: user
+    content_file: ./scene_map.instructions.md
 output:
   format: json
   validation_mode: json_schema
   schema_path: automation-pipeline-dnd/analyze/scene_map.schema.json
-  repair_attempts: 0
+  repair_attempts: 2