Add support for enabled field in module lifecycle blocks

Add support for enabled field in module lifecycle blocks: a task in LegoFlow-SWE (Harbor dataset). Users currently have no direct way to conditionally disable a whole module. A common workaround is count = var.enabled ? 1 : 0 , but this changes the module reference from a single object (…

The task

Users currently have no direct way to conditionally disable a whole module. A common workaround is `count = var.enabled ? 1 : 0`, but this changes the module reference from a single object (`module.example`) to a list (`module.example[0]`), complicating references and outputs.

Part of Lego-X/LegoFlow-SWE.