Terminal: Das prompt, dprompt and dbanner (0.9.1)

- das-shell 0.1.0: the Das two-line bash prompt by default (replaces the
  PS1 of Void's skel .bashrc once), dprompt (Textual prompt builder with
  presets and live preview) and dbanner (SSH login banner editor: canvas
  tools, fields with values, widgets, das-banner service for cached ones,
  Das OS logo and tryzub pictures). Python tests in make test.
- das-server 0.3.0 depends on das-shell; the server installer mentions
  dprompt and dbanner; the desktop image includes it.
- run-qemu.sh forwards the guest's SSH to localhost:2222.
- Hardware fixes: Ventoy menu icon, boot menu titles "Das OS <version>".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

srcpkgs/das-shell/files/share/banner/widgets/smart.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+# dbanner-title-uk: Стан дисків (SMART)
+# dbanner-title-en: Disk health (SMART)
+# dbanner-mode: cached
+# dbanner-interval: 21600
+# Health, temperature and power-on hours of every disk; needs root and smartmontools.
+. "${0%/*}/lib.sh"
+command -v smartctl >/dev/null || exit 0
+((EUID == 0)) || exit 0
+first=1
+for dev in /sys/block/*; do
+	name=${dev##*/}
+	[[ $name == @(loop|ram|zram|sr|dm-|md)* ]] && continue
+	out=$(smartctl -H -A -i "/dev/$name" 2>/dev/null) || [[ -n $out ]] || continue
+	model=$(sed -n 's/^\(Device Model\|Model Number\|Product\): *//p' <<<"$out" | head -1)
+	health=$(sed -n 's/.*\(overall-health\|Health Status\).*: *//p' <<<"$out" | head -1)
+	temp=$(awk '/Temperature_Celsius|Airflow_Temperature/ {print $10; exit} /^Temperature:/ {print $2; exit}' <<<"$out")
+	hours=$(awk '/Power_On_Hours/ {print $10; exit} /^Power On Hours:/ {gsub(",", "", $4); print $4; exit}' <<<"$out")
+	[[ -n $health ]] || continue
+	if ((first)); then echo "$Bold$(say "Стан дисків:" "Disk health:")$Off"; first=0; fi
+	hcolor=$Green
+	[[ $health == PASSED || $health == OK ]] || hcolor=$Red
+	line=" /dev/$name ${model:+($model) }$hcolor$health$Off"
+	[[ $temp =~ ^[0-9]+$ ]] && line+=", $(level "$temp" 55 70)$temp °C$Off"
+	[[ $hours =~ ^[0-9]+$ ]] && line+=", $Cyan$hours $(say "год" "h")$Off"
+	echo "$line"
+done