v0.9.64

Changes since v0.9.63:

• fix(novel): stop shelf mojibake and make chapters easy to copy
• feat(novel): promote SSOT pipeline with machine lock/word gates
• fix(novel): keep shelf state free of YAML comments
• fix(novel): restore the 2000–3500 chapter quota
• fix(novel): align gate and skills with plot units
• feat(novel): split craft KB into eight genre articles
• feat(novel): make the plot unit the minimum draft unit
• feat(novel): add anti-AI character naming rules for outline and draft