Extract Insta pair clothing routing

docs/prompt-architecture-improvement-plan.md

@@ -154,8 +154,7 @@ Improve later:
 - make a single pair metadata sanitizer that normalizes `softcore_row`,
   `hardcore_row`, pair prompts, negatives, captions, and camera fields;
 - split pair assembly into small functions by phase:
-  `build_soft_row`, `build_hard_row`, `resolve_pair_clothing`,
-  `assemble_pair_metadata`.
+  `build_soft_row`, `build_hard_row`, `assemble_pair_metadata`.
 
 Already isolated:
 
@@ -163,6 +162,10 @@ Already isolated:
   camera config selection, same-as-softcore mode, camera-detail override,
   same-room hard scene continuity, camera-aware composition mutation, POV camera
   suppression, and row/root camera metadata synchronization.
+- pair-level hardcore clothing continuity lives in `pair_clothing.py`,
+  including action-aware body-access flags, conflicting outfit-piece cleanup,
+  default visible-men clothing, character-clothing override handling, and final
+  root clothing-state assembly.
 
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