Personal Skills 0.28.0

Personal Skills 0.28.0

• All 19 personal-skills descriptions are rewritten. Each one the agent can
  load says what the skill does and when to use it; each user-only one says
  what you get when you call it.
• task-compass, improve-codebase-architecture, and security-best-practices
  are user-only in every client (Claude, Cursor, Grok, Codex). Call them by
  name. pre-pr-gut-check reads the last two from their files.