- SearchTasks: search tasks using Kanboard query syntax
- MoveTaskPosition: move task to specific position in column/swimlane
- MoveTaskToProject: move task to different project
- Comprehensive test coverage for all methods
- GetTask: retrieve single task by ID
- GetAllTasks: retrieve all tasks for a project with status filter
- CreateTask: create new task and return the created task
- UpdateTask: partial updates via pointer fields
- CloseTask/OpenTask: status operations with proper error handling
- Returns ErrTaskNotFound, ErrTaskClosed, ErrTaskOpen as appropriate
- Comprehensive test coverage for all methods and edge cases