Synchronize pair side metadata

docs/prompt-architecture-improvement-plan.md

@@ -195,7 +195,9 @@ Already isolated:
 - final row and pair text normalization lives in `row_normalization.py`,
   covering trigger prepending, extra-positive append, negative merge/dedupe,
   caption-part joining, embedded soft/hard row output synchronization, and row
-  sanitation before metadata leaves generation.
+  sanitation before metadata leaves generation. It also copies side-specific
+  pair metadata, such as soft partner styling and hardcore clothing/detail
+  state, onto the embedded soft/hard rows.
 
 ### Pair / Adapter Layer
 
@@ -232,7 +234,9 @@ Already isolated:
   shape; the final cleanup step is delegated to `row_normalization.py`.
   Embedded soft/hard rows are synchronized to the final pair prompt, caption,
   and negative outputs during normalization so serialized pair metadata does
-  not carry stale standalone row text.
+  not carry stale standalone row text. Side-specific structured fields are
+  synchronized there too, including soft partner styling and hardcore clothing
+  continuity metadata.
 
 ### Krea2 Formatter Path
 
@@ -441,7 +445,7 @@ Medium-term:
 Near-term:
 
 - Normalize pair metadata with one helper, including embedded row prompt,
-  caption, and negative synchronization.
+  caption, negative, and side-specific metadata synchronization.
 - Confirm pair prompts, captions, and soft/hard rows carry the same sanitized
   scene/camera/clothing fields.
 - Keep same-room pair continuity synchronized in both assembled prompt text and