fix(power): #60 name-agnostic system-battery scan

Replace BAT* globs with type=Battery + !scope=Device (same filter as
nomarchy-battery-notify) in charge-limit oneshot, menu gates, Waybar
power-profile self-gate, doctor, and install chassis detection. CMB0-
style names get charge-cap and laptop modules consistently.

V3 pending: confirm on non-BAT* hardware (HARDWARE-QUEUE). Close #60.

Verified: V1 (option-docs, hardware-db-modules, battery-charge-limit VM).

modules/home/rofi.nix

@@ -174,6 +174,28 @@ let
     # icon set (Papirus) via rofi's per-row icon protocol — see row() below.
     # `nomarchy-menu` with no argument shows the module picker.
 
+    # System batteries: type=Battery, not scope=Device — same filter as
+    # nomarchy-battery-notify. Name-agnostic (BAT0, CMB0, test_battery)
+    # so charge-limit / power-profile gates match notify (BACKLOG #60).
+    has_system_battery() {
+      local d
+      for d in /sys/class/power_supply/*/; do
+        [ "$(cat "$d/type" 2>/dev/null)" = Battery ] || continue
+        [ "$(cat "$d/scope" 2>/dev/null || echo System)" = Device ] && continue
+        return 0
+      done
+      return 1
+    }
+    has_charge_threshold() {
+      local d
+      for d in /sys/class/power_supply/*/; do
+        [ "$(cat "$d/type" 2>/dev/null)" = Battery ] || continue
+        [ "$(cat "$d/scope" 2>/dev/null || echo System)" = Device ] && continue
+        [ -e "$d/charge_control_end_threshold" ] && return 0
+      done
+      return 1
+    }
+
     urlencode() {
       local s="$1" out="" ch i
       for ((i = 0; i < ''${#s}; i++)); do
@@ -264,9 +286,8 @@ let
         # rows drive powerprofilesctl like the power-profile picker, charge
         # rows drive the same theme-sync writer as batterylimit. Each half
         # self-gates on its hardware, so a desktop with neither just toasts.
-        bats=(/sys/class/power_supply/BAT*)
         haveppd=false;    command -v powerprofilesctl >/dev/null 2>&1 && haveppd=true
-        havecharge=false; [ -e "''${bats[0]}/charge_control_end_threshold" ] && havecharge=true
+        havecharge=false; has_charge_threshold && havecharge=true
         if ! $haveppd && ! $havecharge; then
           notify-send "Power" "No power-profile or charge-limit control on this machine."
           exit 0
@@ -755,7 +776,6 @@ ${themeRows}
         # System submenu — connectivity and machine state. Snapshots and the
         # power-profile picker self-gate (BTRFS+snapper / laptop on ppd), so
         # the submenu shrinks to match the hardware, like the Waybar modules.
-        bats=(/sys/class/power_supply/BAT*)
         choice=$( {
           row "Network${menuHint "network"}"        network-wireless
           row "VPN"            network-vpn
@@ -783,13 +803,12 @@ ${themeRows}
           # on VMs/headless via services.fwupd.enable=false), like Printers.
           command -v fwupdmgr >/dev/null 2>&1 && row "Firmware" firmware-manager
           command -v nomarchy-control-center >/dev/null 2>&1 && row "Control Center" preferences-desktop
-          if [ -e "''${bats[0]}" ] && command -v powerprofilesctl >/dev/null 2>&1; then
+          if has_system_battery && command -v powerprofilesctl >/dev/null 2>&1; then
             row "Power profile" preferences-system-power
           fi
           # Self-gated on the charge-threshold sysfs node (laptops that
           # expose it), like Power profile above.
-          [ -e "''${bats[0]}/charge_control_end_threshold" ] \
-            && row "Battery limit" battery-080
+          has_charge_threshold && row "Battery limit" battery-080
           back
         } | rofi -dmenu -show-icons -markup-rows -p System) || exit 0
         case "$choice" in
@@ -820,8 +839,7 @@ ${themeRows}
         # it lands on the next sys-rebuild — the sysfs oneshot in power.nix
         # owns applying it (boot + AC-replug). Self-gated in System; guard
         # here too in case it's invoked directly.
-        bats=(/sys/class/power_supply/BAT*)
-        [ -e "''${bats[0]}/charge_control_end_threshold" ] \
+        has_charge_threshold \
           || { notify-send "Battery limit" "No charge-threshold control on this machine."; exit 0; }
         cur=$(nomarchy-theme-sync get settings.power.batteryChargeLimit 2>/dev/null)
         sel=$( {

modules/home/waybar.nix

@@ -60,7 +60,14 @@ let
   '';
 
   powerProfileStatus = pkgs.writeShellScriptBin "nomarchy-powerprofile-status" ''
-    case "$(ls /sys/class/power_supply/ 2>/dev/null)" in *BAT*) ;; *) exit 0 ;; esac
+    # Name-agnostic system battery (BAT0, CMB0, …) — BACKLOG #60.
+    has_bat=
+    for d in /sys/class/power_supply/*/; do
+      [ "$(cat "$d/type" 2>/dev/null)" = Battery ] || continue
+      [ "$(cat "$d/scope" 2>/dev/null || echo System)" = Device ] && continue
+      has_bat=1; break
+    done
+    [ -n "$has_bat" ] || exit 0
     command -v powerprofilesctl >/dev/null 2>&1 || exit 0
     prof=$(powerprofilesctl get 2>/dev/null) || exit 0
     case "$prof" in

modules/nixos/options.nix

@@ -106,8 +106,9 @@
         example = 80;
         description = ''
           Stop charging at this percentage to extend battery lifespan,
-          where the hardware exposes a charge threshold
-          (/sys/class/power_supply/BAT*/charge_control_end_threshold).
+          where the hardware exposes charge_control_end_threshold on a
+          system battery (type=Battery under /sys/class/power_supply;
+          name-agnostic — BAT0, CMB0, …).
           null leaves charging at the firmware default. Backend-independent
           (a small systemd unit writes the sysfs knob, re-applied on AC
           state changes), so it works under PPD too; needs

modules/nixos/power.nix

@@ -50,7 +50,12 @@ in
         RemainAfterExit = true;
       };
       script = ''
-        for thresh in /sys/class/power_supply/BAT*/charge_control_end_threshold; do
+        # Name-agnostic (BAT0, CMB0, …): same type/scope filter as
+        # nomarchy-battery-notify — BACKLOG #60.
+        for d in /sys/class/power_supply/*/; do
+          [ "$(cat "$d/type" 2>/dev/null)" = Battery ] || continue
+          [ "$(cat "$d/scope" 2>/dev/null || echo System)" = Device ] && continue
+          thresh="$d/charge_control_end_threshold"
           [ -w "$thresh" ] && echo ${toString cfg.batteryChargeLimit} > "$thresh"
         done
         exit 0