Feature requests : Automation capability improvements

Hi, I would like to request the following capabilities with the automations on the GHCP App -

Ability to group automations.
Ability to trigger automations programatically rather than just manual or cron.
Ability to share automations with others.

---
| Field | Value |
| --- | --- |
| App version | 1.1.1 |
| OS | Windows 10.0.26200 |
| Theme | GitHub |
| Path | /workflows |
| Tenure | Week 6 |

首先检查 /workflows 路径，以及现有自动化的表示和调用方式。在确定实现点之前，明确分组、程序化触发器和共享的预期行为及边界。完成标准应包括已达成一致的需求，以及对全部三项能力的验证。

由索引模型根据 Issue 内容生成。