Feat: kusion init supports the updated built-in templates for typical project initiation

[liu-hm19]

What would you like to be added?

Please update the built-in templates for typical project initiation, some of which include:

• an application with a simple job workload
• an application with a simple long-running service workload
• an application with a long-running service using mysql database

Why is this needed?

This can help users quickly getting started with Kusion.