feat(infra): add required area and priority to issue forms #440

[chf3198]

Summary

Audited all 5 .github/ISSUE_TEMPLATE/*.yml forms. Found and fixed two gaps:

• epic.yml: Added area dropdown with required: true (was missing entirely)
• research.yml: Added priority dropdown with required: true (was missing entirely)

Confirmed already correct: bug-report.yml, task-request.yml, story.yml — all critical fields already had required: true.

Confirmed: blank_issues_enabled: false already set in config.yml.

Test plan

• Open new Epic via GitHub web UI → verify Area and Priority dropdowns are required
• Open new Research ticket via GitHub web UI → verify Priority dropdown is required
• npm run lint passes (60 lines each, under 100-line limit)

Closes #440

🤖 Generated with Claude Code

[github-actions]

	Messages
📖	Danger: ticket-first, branch, and title checks complete. Failures block merge; warnings are advisory.

Generated by 🚫 dangerJS against acc4d88

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