Jira MCP Toolset

# Changelog ## [1.0.0] - 2025-04-17 ### Added - Unified Jira issue update workflow: All updates (newly created and existing issues) now use a single, consistent mechanism and state manager. ([issue-updating-user-stories.md], [simplified-implementation-plan.md]) - New MCP tool: Load any existing Jira issue into the state manager for seamless updates. - Comprehensive unit tests for update operations and orchestrators (100% coverage). - Documentation for unified update workflow and implementation plan. ### Changed - Refactored state management and update logic to eliminate code duplication between new and existing issue updates. - Improved validation and error handling for all update operations. ### Notes - Backward compatible: Existing workflows are preserved; new unified update path is now default. - Clean code principles enforced: single responsibility, DRY, explicit error handling, and robust test coverage. --- References: @issue-updating-user-stories.md, @simplified-implementation-plan.md