Add normalize configuration contract

examples/pipeline.minimal.yml

@@ -43,6 +43,12 @@ audita:
   validation_llm_concurrency: 1
   report: true
 
+normalize:
+  # Session-workdir-relative when not absolute.
+  output_path: "transcripts/normalized.json"
+  output_schema: "seriatim-intermediate"
+  report: true
+
 trim:
   enabled: true
   # Session-workdir-relative when not absolute.