feat(menu): Recovery scopes (#111), System IA (#105), drop Control Center (#110)

System is Connectivity / Devices / Recovery / Preferences under the same
six-entry root. Recovery lists desktop (HM), system boot, and BTRFS files
once each with cost labels. Control Center is gone: blur/gaps live in Look
& Feel; update checks and Bluetooth/Printing package toggles in Preferences
(with rebuilds). docs/RECOVERY paths updated.

docs/HARDWARE.md

@@ -136,10 +136,9 @@ confirm → `fwupdmgr update`. It never auto-flashes — `fwupdmgr update`
 confirms each device and prompts for the reboot a capsule needs; pillar 1
 (rock-stable) forbids silent BIOS writes.
 
-**Hints (#43 / #73):** MOTD cheat-sheet line + `nomarchy-control-center
---first-boot` tip when `fwupdmgr` is on PATH. Fingerprint / doctor tips
-follow the same pattern (fingerprint MOTD only when
-`nomarchy.hardware.fingerprint.enable`).
+**Hints (#43 / #73):** MOTD cheat-sheet line when `fwupdmgr` is on PATH.
+Fingerprint / doctor tips follow the same pattern (fingerprint MOTD only
+when `nomarchy.hardware.fingerprint.enable`).
 
 **Still queued:** a Doctor “updates available” check, and
 Waybar/updates-panel integration.