mouyu6508-hue/dsh-preflight

Checkup for the whole plugin lifecycle: before install it verifies dsh.bundle, engine and peer compatibility, native build needs, platform limits and whether the new patch would mount a loader name that is already installed (install-shadow prediction); after install it groups every installed plugin by capability; before update it runs the same checks against the new version and reports only the problems the update introduces. Ships a CLI that runs even when DSH will not boot, plus three read-only tools.