Two user-facing commands shipped in overlay/usr/local/bin/.
Wraps dnf+flatpak update flow and read-only health diagnostic.
Uses gum if available, plain output otherwise. No kickstart wiring
yet beyond chmod — full integration in v0.6.0 release.
Bugs found by agent linter on v0.5.0-alpha:
1. logvol missing --size: ksvalidator rejected. Added --size=8192 --grow.
2. bootloader --location=mbr on UEFI: conflicts with /boot/efi part.
Switched to --location=none (anaconda auto-detects EFI vs BIOS).
3. lsblk awk truncated multi-word disk models ("WD PC SN740" → "WD").
Now collapses model spaces to underscores, preserves full string.
Also added mmcblk to disk regex (eMMC support).
4. Heredoc with $VAR expansion + passwords containing $/`/" corrupted
generated ks. Now: single-quoted heredoc + sed placeholder
substitution. Plus input validator rejects "$\` chars in passwords.
ksvalidator clean on sample generated ks.
bash -n clean.
CI build still in flight (3328ffb). This pushes a new commit; CI will
run again with these fixes. Net delay: zero (3328ffb's installer was
broken anyway, so its ISO unusable for install path).
