Document Scriptorium session recap integration

examples/pipeline.minimal.yml

@@ -55,6 +55,8 @@ scriptorium:
       profile_id: "local-quality"
       output_path: "artifacts/session_recap.md"
       timeout: "10m"
+      # Optional per-artifact override of global scriptorium.render_debug.
+      # render_debug: true
       inputs:
         transcript:
           source: "processed_transcript"
@@ -62,6 +64,7 @@ scriptorium:
         previous_recap:
           source: "previous_session_artifact"
           artifact: "session_recap"
+          # Optional: set when previous recap is available.
           path: ""
           required: false
       vars: