chore(deps): bump husky to v9

[yoshi-taka]

https://dev.to/typicode/what-s-new-in-husky-5-32g5

This PR upgrades Husky from v1 to v9, moving from the legacy JS-based hook runner to the modern core.hooksPath + shell-based architecture.

Why this change • Husky v9 is significantly lighter and faster. • The old v1 flow relied on JS runners and extra scaffolding, which increased overhead and required more maintenance. • v9 reduces dependencies to zero and improves hook startup time.

What changed • Updated Husky to v9 and regenerated the .husky/ directory.

Benefits • Smaller install footprint. • Faster pre-commit / pre-push execution. • Simpler, more intuitive hooks. • Modern and actively maintained architecture.