Preset Packs Role Audit Phase 1

- Current duo split remains intentionally limited to 1boy + 1girl only.
- If output contains 2boys / 3girls / plural count tags, the rewrite is skipped.
- Preset pack tags are now role-classified at token level during post-generation rewrite.
- Explicit female tokens (female teacher, female spy, widow, magical girl, bikini/swimsuit/dress etc.) go to 1girl side.
- Explicit male tokens (male military uniform, bodyguard suit, butler, prince, men's / boys / gakuran etc.) go to 1boy side.
- Scene / effect / relation tags stay shared and are sent to the trailing shared block.
- This patch also restores ext_attire_role_engine.js inside the zip so ext_manifest.v2.js no longer references a missing file.
