golangci-lint deprecated the govet `check-shadowing` setting in v1.57.0 and
later removed it; a config using it now errors. The current v1-format way to
enable the shadow analyzer is `govet.enable: [shadow]`.
Applies to the source skill and the ja-JP, zh-CN, zh-TW, ko-KR, tr translated
copies.
Refs: https://golangci-lint.run/docs/product/migration-guide/
Translate English prose inside plain text code blocks (```text, ```)
across ja-JP documentation to Japanese, following the same approach
as PR #753 (zh-CN translation).
Translated content includes:
- Output template labels and status messages
- Folder tree inline comments
- CLI workflow descriptions
- Error/warning message examples
- Commit message templates and PR title examples
Technical identifiers, file paths, and actual code remain untranslated.
