refactor: streamline container setup and dependencies

- Remove `xz-utils` from initial package install
- Remove password/secret check in `obj_init`
- Add on-demand `crun` installation during container create
- Import `herorunner_installer` for `crun` setup

lib/virt/heropods/container_create.v

@@ -4,6 +4,7 @@ import freeflowuniverse.herolib.ui.console
 import freeflowuniverse.herolib.osal.core as osal
 import freeflowuniverse.herolib.core.pathlib
 import freeflowuniverse.herolib.core.texttools
+import freeflowuniverse.herolib.installers.virt.herorunner as herorunner_installer
 import os
 
 // Updated enum to be more flexible
@@ -73,6 +74,12 @@ pub fn (mut self ContainerFactory) new(args ContainerNewArgs) !&Container {
 	// Create container config
 	self.create_container_config(args.name, rootfs_path)!
 
+	// Install crun if not installed
+	if !osal.cmd_exists('crun') {
+		mut herorunner := herorunner_installer.new()!
+		herorunner.install()!
+	}
+
 	// Create container using crun
 	osal.exec(
 		cmd:    'crun create --bundle ${self.base_dir}/configs/${args.name} ${args.name}'