v0.2.2

v0.2.2 release

Features:
- PermissionEngine with wildcard rule matching
- Memory System with dual-scope persistence
- Chinese localization for all approval UI
- Auto-config wizard on first run
- /config append mode, /model delete option
- /memory slash command
- Skill system with .scream/skills/
- Updated README and AGENTS.md documentation

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>