Integration in SAF applications

### 📝 Description of the feature

List of USes for enhancing integration in SAF

### Acceptance Criteria

All children USes are closed

### 💵 Business Value

_No response_

### 🔗 Useful links and references

_No response_

The issue names no files, tests, or entry points. First clarify which SAF applications and child use stories are in scope, then identify the relevant integration entry points; done means every defined child use story is closed.

由索引模型根据 Issue 内容生成。