Attire male expansion + mixed 1boy/1girl rewrite patch

Added:
- ext_attire_role_engine.js
- manifest registration

Behavior:
- Adds a visible male-focused attire expansion block under Attire
- On Generate, if both 1boy and 1girl are selected and male/female-coded attire exists, rewrites output into role-separated segments using BREAK
- Preserves memo-pad / external prefix tokens when possible
