feat: the hw suite (H1, H4, H5, R1.7 CEC) and host-side suite blocks

vmsuite.sh runs NN-name.host.sh blocks on the host (reboot, scripts/vmcec.sh) with
prelude-host.sh; every block that applies Steamify says so first (INFO) so the shared
console is not silent for minutes. 68 checks pass.

share/vmtest/hw/10-h1-h5-leds-poweroff.sh

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+# H1 (LED driver) and H5 (power-off module) with the faked Steam Machine.
+info "applying Steamify (installs packages, builds kernel modules: a few minutes)..."
+sf --defaults --options gaming,theme,glyphs,single,launcher,notify,cec,machine,poweroff >/dev/null; rc=$?
+[[ $rc -eq 0 ]] && pass "Steamify applied (exit 0)" || fail "Steamify exit $rc"
+# H1
+lsmod | grep -q '^leds_valve' && pass "H1 leds_valve loaded" || fail "H1 leds_valve not loaded"
+n=$(compgen -G "/sys/class/leds/valve-leds*" | wc -l); [[ $n -eq 17 ]] && pass "H1 17 valve-leds nodes" || fail "H1 $n valve-leds nodes"
+own=$(stat -c %U /sys/class/leds/valve-leds*/brightness 2>/dev/null | sort -u | tr '\n' ' '); [[ "$own" == "$(id -un) " ]] && pass "H1 the nodes belong to the user" || fail "H1 node owner: $own"
+# H5
+for k in $(ls /usr/lib/modules); do
+    compgen -G "/usr/lib/modules/$k/updates/dkms/steamify-fremont-poweroff.ko*" >/dev/null && pass "H5 power-off module built for $k" || fail "H5 no power-off module for $k"
+done
+sudo modprobe -r steamify_fremont_poweroff 2>/dev/null
+out=$(sudo modprobe steamify_fremont_poweroff 2>&1); rc=$?
+# in the VM there is no GPIO wake bit: it loads, or answers "No such device"
+[[ $rc -eq 0 ]] || grep -q "No such device" <<< "$out" && pass "H5 the module loads (or: No such device, no GPIO wake bit)" || fail "H5 modprobe: $out"

share/vmtest/hw/20-h4-boot-desktop-reboot.host.sh

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+# H4: Boot into desktop, reboot: Plasma straight after boot; Boot into gaming: SDDM autologin into gamescope (session file).
+conf=/etc/sddm.conf.d/10-gamescope-autologin.conf
+info "applying Steamify (a few minutes)..."
+guest 'sf --defaults --options gaming,theme,single,machine --boot gamescope >/dev/null; echo done' | tail -n 1 | grep -q done && pass "H4 conversion applied" || fail "H4 apply"
+guest "grep -h '^Session=' $conf" | grep -qi gamescope && pass "H4 gaming: the SDDM autologin session is gamescope" || fail "H4 gaming session: $(guest "grep -h Session= $conf")"
+guest 'sf --boot desktop >/dev/null; echo done' | tail -n 1 | grep -q done && pass "H4 --boot desktop" || fail "H4 --boot desktop"
+reboot_guest && pass "H4 the VM is back after the reboot" || { fail "H4 no ssh after the reboot"; return 0 2>/dev/null || exit 0; }
+up=""; for _ in $(seq 40); do vm_ssh "pgrep -u $VM_USER -x plasmashell" >/dev/null 2>&1 && { up=1; break; }; sleep 3; done
+[[ -n "$up" ]] && pass "H4 Plasma straight after the boot (boot into desktop)" || fail "H4 no plasmashell after the reboot"
+guest 'sf --boot gamescope >/dev/null; echo done' | tail -n 1 | grep -q done && pass "H4 --boot gamescope" || fail "H4 --boot gamescope"

share/vmtest/hw/30-r1-7-cec.host.sh

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+# R1.7 / H2: HDMI-CEC with vivid (fake TV and remote): scripts/vmcec.sh prints PASS/FAIL/SKIP (2 SKIP in the VM: wake from TV, sleep).
+info "applying Steamify (a few minutes)..."
+guest 'sf --defaults --options gaming,theme,glyphs,single,launcher,notify,cec,machine,poweroff >/dev/null; sudo modprobe vivid; echo done' | tail -n 1 | grep -q done && pass "CEC: Steamify applied, vivid loaded" || fail "CEC setup"
+"$repo/scripts/vmcec.sh" --no-sleep 2>&1 | sed 's/\x1b\[[0-9;]*m//g' | grep -E '^(PASS|FAIL|SKIP)|PASS|FAIL' | sed -E 's/^[^A-Z]*(PASS|FAIL|SKIP)/\1 CEC:/' | cut -c1-140