CLAUDE.md git:20260917.e2e4129A

Immutable. This exact content never changes and is served at /api/v1/blob/1c11d80559c07794.

## Language

- Always respond in Simplified Chinese.

## Code Comments

Write as few comments as possible.

Comments should be:
- short (usually under one line)
- describe *why*, not *what*
- avoid explaining obvious code
- never write tutorial-style comments
- never comment every step