Decomposes the monolithic `internal/core/domain/domain.go` file into separate files for each domain entity (`app.go`, `app_instance.go`, `cloudlet.go`, `flavor.go`).
- `SecurityRule` struct moved into `app.go` as it is a value object specific to the App entity.
- `Location` struct moved into `cloudlet.go` as it is a value object specific to the Cloudlet entity.
- `Flavor` remains a separate file as it is a shared entity used by App, AppInstance, and Cloudlet.
This refactoring improves modularity and makes the domain model easier to navigate and understand.
Stephan Lo
a987e42ad6