docs: update AGENTS.md and MODULE_REFACTORING_GUIDE.md
AGENTS.md: add Model::query() rule, full docker exec commands in pre-commit checklist,
fix Docker Command Policy to use consistent container lookup pattern.
MODULE_REFACTORING_GUIDE.md: remove duplicate Access Guard, Repository Rules, and
Template Variables content already covered in AGENTS.md; reference AGENTS.md instead.
fix Docker Command Policy to use consistent container lookup pattern.
MODULE_REFACTORING_GUIDE.md: remove duplicate Access Guard, Repository Rules, and
Template Variables content already covered in AGENTS.md; reference AGENTS.md instead.