Replace pre-commit with prek and add Claude skill

[Miyamura80]

Replaced .pre-commit-config.yaml with prek.toml to use prek as the git hook runner. Added .claude/skills/prek/SKILL.md with instructions on how to use prek.

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PR created automatically by Jules for task 760911467584852843 started by @Miyamura80

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[greptile-apps]

Greptile Summary

Migrated from Python-based pre-commit to Rust-based prek for faster git hook execution. All seven hooks from .pre-commit-config.yaml were successfully migrated to prek.toml with identical configurations.

• Deleted .pre-commit-config.yaml
• Added prek.toml with all hooks preserved (check-added-large-files, lint-links, make-fmt, ruff-check, ruff-complexity, ruff-tech-debt, pylint-duplicate-code, ai-writing-check)
• Added .claude/skills/prek-precommit-hook/SKILL.md with comprehensive prek usage instructions

Confidence Score: 5/5

• This PR is safe to merge with no risk
• This is a straightforward migration from pre-commit to prek with perfect 1:1 hook translation. All hooks are preserved with identical configurations. The README already mentions prek, and no CI workflows need updates.
• No files require special attention

Important Files Changed

Filename	Overview
.pre-commit-config.yaml	Removed the old pre-commit configuration file as part of migration to prek
prek.toml	Added new prek configuration with all hooks from the previous pre-commit config migrated correctly
.claude/skills/prek-precommit-hook/SKILL.md	Added Claude skill documentation explaining how to use prek for git hooks management

_{Last reviewed commit: b2a863b}