- Add ChannelMappingRequest and ChannelMappingDeleteRequest structs with validation
- Update BridgeManager interface to accept structured parameters instead of individual strings
- Implement proper user ID and team ID propagation to shared channels
- Add shared channel creation/deletion integration with Mattermost API
- Update command handlers to provide user and team context
- Enhance logging with comprehensive parameter tracking
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
