The workflow and agent of the same application should be placed in the same directory

[wugren]

For application developers, it is easier to manage the configuration and code of their applications in the same directory, and the chance of reusing workflows and agents between different applications is very small. Third-party application access should not be allowed by default. It's also safer. If there is a need for reuse, it can also be exported through configuration.

[waterflier]

I already have a design and plan to isolate it in version 0.5.2. Now the entire AIOS operates in an all-in-one mode~