Update documentation with v0.3.0 achievements and future Claude guidance

**README Updates:**
- Added v0.3.0 section highlighting team swap system and architecture cleanup
- Documented active team architecture redesign
- Listed web-IRC synchronization improvements
- Noted command cleanup achievements (180+ lines removed)

**CLAUDE.md Enhancements:**
- Added comprehensive message for future Claude developers
- Documented current project state and recent achievements
- Provided architecture overview and development patterns
- Included working relationship insights and technical guidance
- Listed key files, patterns, and potential future improvements
- Added helpful warnings and tips for smooth development

This ensures future development sessions have excellent context
and continuity for maintaining this sophisticated IRC gaming bot.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

README.md

@@ -184,6 +184,16 @@ Access the web dashboard at `http://petz.rdx4.com/`:
 
 ## 🐛 Recent Updates
 
+### v0.3.0 - Team Swap System & Architecture Cleanup
+- ✅ **Active Team Architecture**: Complete redesign allowing any team (1-3) to be set as active
+- ✅ **Web-IRC Synchronization**: IRC battles now use teams selected via web interface
+- ✅ **Team Management Hub**: Enhanced web interface with "Make Active" buttons and team status
+- ✅ **Database Migration**: New `active_teams` table for flexible team management
+- ✅ **PIN Security**: Secure team changes with IRC-delivered PINs and verification
+- ✅ **Command Architecture Cleanup**: Eliminated 12 duplicate commands and standardized admin system
+- ✅ **Legacy Code Removal**: Cleaned up 180+ lines of redundant code across modules
+- ✅ **Modular System Enhancement**: Improved separation of concerns and maintainability
+
 ### v0.2.0 - Item Collection System
 - ✅ Complete item system with 16 unique items across 5 categories
 - ✅ Item discovery during exploration (30% chance)