Add name-mention detection to escalate VIP callouts from Digest/Ignore to Needs Review

Fix Google Docs comment notifications misclassified as Ignore

Fix Subject column showing Gmail URLs by adding separate Link column

Add is:unread to check-email search query

Update check-email SKILL.md label examples to reference config values

Rename GTD/Review label to GTD/Digest

Update README to document both skills and current project structure

Add gap analysis improvements from email-checker source

Add draft-email skill with voice profile and tone support

Add config schema validation and document importance values

Cleanup

Update gog installation instructions

Remove old label deletion from setup instructions

Add development tooling (linting, pre-commit hooks, secret detection)

Initial commit: Claude Email Plugin with GTD workflow