Add justfile and Git Hooks

[kurosakishigure]

Dev Kit Description

1. Use justfile to execute common scripts.
2. Run various tests using Git Hooks before committing code.

Rationale

1. By incorporating a justfile into the development process, we can avoid the need to manually run various commands repeatedly, simplifying the workflow.
2. streamlining the complex testing process.

Approach

1. We also need to keep the contribution documentation updated in sync.
2. Additionally, we can further extend its functionality, such as implementing automated version bumps.
3. Fix: revert: Add CODEOWNERS #197 (comment)
4. lefthook, pre-commit, workflow_dispatch, and shell scripts