- Changed 'STRUCTURAL VALIDATION ONLY' → 'STRUCTURAL VALIDATION AND WORD-COUNT EXPANSION'
- Word floor check now EXPANDS (not just flags) when draft is >10% below chapter_target_words
- Added expansion rules: interiority, sensory grounding, dialogue beats, scene transitions
- Added max_tokens: 32000 and model: power to self-check step for capacity headroom
- Removed 'Expand any description or add sensory detail' from NOT ALLOWED (only applies to existing prose)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>