Release v1.1.0

Code quality and architecture improvements:
- Fixed all 33 golangci-lint issues (errcheck, unused, staticcheck, ineffassign)
- Comprehensive error handling for all API calls
- Removed dead code and unused functions
- Clean architecture with modular structure
- Detailed technical documentation
- Enhanced logging and monitoring capabilities
- Optimized dependencies and build process

Quality metrics: 0 linting issues, clean compilation, full error coverage