Add Optional guestInstallPrefix Field to Lima Templates

Add Optional guestInstallPrefix Field to Lima Templates: a task in LegoFlow-SWE (Harbor dataset). Currently, Lima hardcodes the installation prefix /usr/local for installing the guest agent and containerd with dependencies. This fails on systems where /usr is read-only (e.g., Container Linux…

The task

Currently, Lima hardcodes the installation prefix `/usr/local` for installing the guest agent and containerd with dependencies. This fails on systems where `/usr` is read-only (e.g., Container Linux, which uses `/opt` instead).

Part of Lego-X/LegoFlow-SWE.