[Ability] comment-stats — Show comment counts by status #8

Use Case

User says "show comment stats" or "how many comments do I have". AI returns comment counts by status (approved, pending, spam, trash) and recent comment activity.

Checklist

• Writer: Define natural language triggers (keywords), expected response format, read-only or destructive
• PHP Dev: Create includes/abilities/comment-stats.php with register_agentic_ability()
• JS Dev: Create src/extensions/abilities/comment-stats.js with registerAbility()
• JS Dev: Register in src/extensions/abilities/index.js
• LLM Tester: Add test cases to tests/abilities/core-abilities.test.js
• Build & verify: npm run build and npm run test:abilities

References

• Abilities Guide — full step-by-step
• Third-Party Integration — API reference
• Existing example: includes/abilities/comment-stats.php + src/extensions/abilities/comment-stats.js

Notes

Use wp_count_comments(). Readonly. Simple implementation — good first issue.