Remove a subtask from its parent task.
Remove a subtask from its parent task. Arguments: $ARGUMENTS Parse subtask ID to remove, with option to convert to standalone task. ## Removing Subtasks Remove a subtask and optionally convert it back to a standalone task. ## Argument Parsing - "remove subtask 5.1" - "delete 5.1" - "convert 5.1 to task" → remove and convert - "5.1 standalone" → convert to standalone ## Execution Options ### 1. Delete Subtask ### 2. Convert to Standalone ## Pre-Removal Checks 1. **Validate Subtask** - Verify subtask exists - Check completion status - Review dependencies 2. **Impact Ana...