chore: add pre-commit validation hook for PR template compliance

[ashleyshaw]

Linked issues

Relates to #1489

Summary

Adds pre-commit validation hook to enforce governance compliance before push. Validates branch naming, prevents direct commits to main/develop, and warns about missing PR template sections.

Changes

• Add hooks/pr-checklist-validator.sh — executable pre-commit validation hook
• Integrates with Claude Code UserPromptSubmit hook
• Validates: branch naming ({type}/{scope}-{short-title}), forbidden prefixes (claude/), protected branches

Features

• ✅ Branch name format validation
• ✅ Protection for main/develop branches
• ✅ Template warnings for feat/ branches
• ✅ Real-time feedback in Claude Code or terminal
• ✅ Portable hook (root-level, reusable)

Integration

Add to .claude/settings.json (local, not committed):

{
"hooks": {
"UserPromptSubmit": [
{
"matcher": "",
"hooks": [
{
"type": "command",
"command": "hooks/pr-checklist-validator.sh",
"statusMessage": "Validating PR compliance checklist..."
}
]
}
]
}
}

Changelog

Added

• Added pre-commit validation hook to enforce governance rules before push (Relates to fix: PR #1488 governance validation hook has regex bug + process workflow gaps #1489)

---

Checklist (Global DoD / PR)

• All AC met and demonstrated
• Code quality verified (shell script)
• Linked issues: Relates to fix: PR #1488 governance validation hook has regex bug + process workflow gaps #1489
• CI passing

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Review details

⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Pro Plus

Run ID: 289a34e3-392f-48ba-868a-2979fb096d99

📥 Commits

Reviewing files that changed from the base of the PR and between ed1b685 and f647bae.

📒 Files selected for processing (1)

• hooks/pr-checklist-validator.sh

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[github-actions]

⏱️ Aging and SLA annotation

• Age: 0 day(s)
• SLA state: Within SLA
• Thresholds: warn at 7 days, breach at 14 days
• Last updated: 2026-08-04T17:47:40.640Z

Maintained by project-meta-sync workflow.

[github-actions]

🔍 Reviewer Summary for PR #1508

CI Status: ✅ success
Files changed: 1
Risk Distribution: 0 critical, 0 high, 0 medium, 1 low

Recommendations

• Ready to proceed pending human review

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