fix: correct git diff command for accurate change statistics

feat: add critical task tier with gpt-5.2 model support

feat: add model + reasoning_effort combination options for code review

docs: recommend skill-master as primary install method

chore: sync package.json version with SKILL.md (2.1.4)

docs: update installation guide to use npx skills add command

feat: improve difficulty assessment criteria for code review

fix: add timeout parameter for difficult tasks in codex-review skill

fix: quote description field in YAML frontmatter

chore: internationalize skill documentation to English

docs: improve installation instructions clarity

style: normalize config file formatting

docs: swap README files - English as default

docs: add plugin.json and CHANGELOG.md

feat: initial release of codex-review skill