Add ".WithManualStart()" to ResourceBuilder

[dvlprx]

Is your feature request related to a problem? Please describe the problem.

We do have some desktop applications (wpf, winforms, ..), that get started along with the rest of the system, to provide some not-always-used functionality. For example, there is a wpf log viewer.

Aspire auto-starts all configured apps automatically, which is a little bit annoying.

Describe the solution you'd like

It would be very nice, to have a .WithManualStart() option for configured aspire components, to let the user start them manually if needed, like this:

builder.AddProject<Projects.Some_Wpf_App>("SomeWpfApp")
.WithManualStart()

[afscrome]

See #5851, #7043.

Another option is to look at custom command calling Process.Start() - e.g. rather than having a log viewer application as it's own resource, it may make sense to add it as a resource command on the thing it's viewing logs for.

https://learn.microsoft.com/en-us/dotnet/aspire/fundamentals/custom-resource-commands

[davidfowl]

Dupe