Add normalize configuration contract

README.md

@@ -50,6 +50,22 @@ YAML decoding is strict (`KnownFields(true)`), so unknown fields fail fast.
 - `transcripts/normalized.json`: placeholder normalized transcript (Seriatim schema pass-through for now)
 - `transcripts/trimmed.json`: gameplay-only polished transcript from trim stage
 
+## Normalize Configuration
+
+`pipeline.normalize` is optional. When omitted, Narratio defaults to:
+
+- `output_path: transcripts/normalized.json`
+- `output_schema: seriatim-intermediate`
+- `report: true`
+
+Allowed `normalize.output_schema` values:
+
+- `seriatim-minimal`
+- `seriatim-intermediate`
+- `seriatim-full`
+
+`normalize.output_path` is treated as session-workdir-relative when not absolute.
+
 ## Trim Configuration
 
 `pipeline.trim` is optional. If omitted, no trim config is loaded. If `trim.enabled` is omitted, it defaults to `false`.