Normalize prompt folder naming

prompts/pipeline-dnd/trim/bounds.yml

@@ -0,0 +1,22 @@
+id: dnd.session_bounds
+version: "2.0.0"
+default_profile: gemini-flash-latest
+description: Review D&D session transcript and identify starting and ending segments for actual gameplay.
+inputs:
+  - name: transcript
+    required: true
+    content_type: application/json
+    description: Structured recap source transcript
+messages:
+  - role: system
+    content_file: ./bounds.system.md
+  - role: user
+    content_file: ./bounds.user.md
+  - role: user
+    content: |
+      {{input "transcript"}}
+output:
+  format: json
+  validation_mode: json_schema
+  schema_path: automation-pipeline-dnd/trim/bounds.schema.json
+  repair_attempts: 0