Fix: add issues: write permission to unblock PR comment posting

[Copilot]

The validate-and-render job was failing with HTTP 403 "Resource not accessible by integration" when attempting to post its summary comment. The Issues REST API endpoint used for PR comments (POST /issues/{number}/comments) requires issues: write, which was absent — only pull-requests: write was declared.

Change

• .github/workflows/pr-check.yml: add issues: write to the permissions block

permissions:
  contents: read
  pull-requests: write  # needed to post/update the summary comment
  issues: write         # needed to create/update issue comments via the Issues API

The 403 response header x-accepted-github-permissions: issues=write; pull_requests=write confirmed the missing scope.

[jchen0506]

LGTM

[github-actions]

ACT-CMS Lesson Portal — PR check

❌ Checks failed. Please fix the items below and push an update to this branch — the check re-runs automatically.

Errors (must fix)

Error: '.github/workflows/pr-check.yml' is a YAML file outside the lessons/ folder. Lesson submissions must live in lessons/<your-module>.yml.

---

See template.yaml for the full field reference. Common pitfalls: fields like platforms, authors, and scientific_objectives must be YAML lists (- item), and recommended_platform must be exactly one name that matches an entry in platforms.