docs: add integration guide for combining skill with git hooks and CI tools

[q-soriarty]

Problem

The skill relies on Claude Code's LLM interpretation to enforce workflow rules. Teams that want mechanical enforcement alongside the skill have no guidance on how to set up:

• Pre-commit hooks (e.g., husky, pre-commit) for commit message validation
• commit-msg validators (e.g., commitlint) to enforce Conventional Commits format
• Branch name linting to enforce the naming convention
• CI/CD integration to validate PR titles match Conventional Commits

Expected behavior

Add an "Integration" section to SKILL.md (or a separate INTEGRATIONS.md linked from README) covering:

1. Recommended tools for mechanical enforcement
2. Example commitlint config that matches the skill's Conventional Commits rules
3. Example husky/pre-commit setup
4. How these tools complement (not replace) the skill

Keep it concise — config snippets and links to official docs, not full tutorials.

[github-actions]

Closed by #94 (merged into develop).