feat(task-104): Complete task 104 - Implement scope-up and scope-down CLI Commands

- Added new CLI commands 'scope-up' and 'scope-down' with comma-separated ID support
- Implemented strength levels (light/regular/heavy) and custom prompt functionality
- Created core complexity adjustment logic with AI integration
- Added MCP tool equivalents for integrated environments
- Comprehensive error handling and task validation
- Full test coverage with TDD approach
- Updated task manager core and UI components

Task 104: Implement 'scope-up' and 'scope-down' CLI Commands for Dynamic Task Complexity Adjustment - Complete implementation with CLI, MCP integration, and testing

.taskmaster/state.json

@@ -1,9 +1,9 @@
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