Create and manage task documents in the docs/todo/ workflow. Use when creating new tasks, updating task status, or moving tasks between workflow stages. Provides complete task lifecycle management with verification.

在 docs/todo/ 工作流中创建和管理任务文档，适用于新建任务、更新任务状态或在工作流阶段间移动任务，提供完整的任务生命周期管理与验证功能