feat: live charge limit, identity retunes, btop assets (product calls)

- Charge limit: udev GROUP=users on threshold; menu applies sysfs live
  and persists state; boot/AC oneshot prefers live theme-state.json.
- Look & Feel: Reset wallpaper (auto); Theme/next/night light already there.
- NVIDIA first-class wrappers deferred past v1 (keep #59 comments).
- Identity taste: white, lumon, hackerman, matte-black, miasma.
- Hand btop.theme for identity + boreal/executive-slate/neon-glass.

Verified: V0 contrast; V1 battery-charge-limit VM. V3 live sysfs on laptop.

modules/home/rofi.nix

@@ -314,9 +314,18 @@ let
           fi
           back
         } | rofi -dmenu -show-icons -p "Power — profile: ''${curp:-n/a}, limit: ''${curc:-default}") || exit 0
+        # Persist in-flake + apply live to sysfs (udev makes the node
+        # group-writable for users — Bernardo 2026-07-10).
         set_limit() {
           nomarchy-theme-sync --quiet set settings.power.batteryChargeLimit "$1" --no-switch
-          notify-send "Battery limit" "$2 — applies on the next rebuild."
+          n="$1"; [ "$n" = null ] && n=100
+          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 "$n" > "$thresh" 2>/dev/null || true
+          done
+          notify-send "Battery limit" "$2 — applied now."
         }
         case "$choice" in
           "$BACK")              exec "$0" ;;
@@ -530,12 +539,13 @@ ${themeRows}
         esac ;;
 
       lookfeel)
-        # Look & Feel — appearance grouped (item 19): the theme picker,
-        # wallpaper cycling, night light. The root stays six rows; the
-        # SUPER+T / SUPER+SHIFT+T direct binds still hit the leaves.
+        # Look & Feel — appearance: Theme, wallpapers, night light.
+        # Root stays six entries (Apps / Look & Feel / Tools / System /
+        # Power / Keybindings). SUPER+T / SUPER+SHIFT+T still hit leaves.
         choice=$( {
           row "Theme${menuHint "theme"}" preferences-desktop-theme
           row "Next wallpaper${hintForAction "exec, nomarchy-theme-sync bg next"}" preferences-desktop-wallpaper
+          row "Reset wallpaper (auto)" preferences-desktop-wallpaper
           if systemctl --user is-active --quiet hyprsunset.service 2>/dev/null
           then row "Night light (on)"  weather-clear-night
           else row "Night light (off)" weather-clear-night
@@ -545,7 +555,8 @@ ${themeRows}
         case "$choice" in
           "$BACK")           exec "$0" ;;
           *Theme*)           exec "$0" theme ;;
-          *wallpaper*)       exec nomarchy-theme-sync bg next ;;
+          *"Next wallpaper"*) exec nomarchy-theme-sync bg next ;;
+          *"Reset wallpaper"*) exec nomarchy-theme-sync bg auto ;;
           *"Night light"*)   exec "$0" nightlight ;;
         esac ;;
 
@@ -903,10 +914,8 @@ ${themeRows}
         # Battery charge-limit preset picker — the rofi-System counterpart of
         # the control-center's toggle (Bernardo: he wanted this in the menu,
         # not buried in the gum TUI). Writes the baked NixOS option
-        # settings.power.batteryChargeLimit via theme-sync (--no-switch), so
-        # it lands on the next sys-rebuild — the sysfs oneshot in power.nix
-        # owns applying it (boot + AC-replug). Self-gated in System; guard
-        # here too in case it's invoked directly.
+        # Persist + live sysfs apply (same as powermgmt). Boot/AC re-apply
+        # stays with the oneshot in power.nix.
         has_charge_threshold \
           || { notify-send "Battery limit" "No charge-threshold control on this machine."; exit 0; }
         cur=$(nomarchy-theme-sync get settings.power.batteryChargeLimit 2>/dev/null)
@@ -920,7 +929,14 @@ ${themeRows}
         } | rofi -dmenu -show-icons -p "Battery limit (now: ''${cur:-default})") || exit 0
         set_limit() {
           nomarchy-theme-sync --quiet set settings.power.batteryChargeLimit "$1" --no-switch
-          notify-send "Battery limit" "$2 — applies on the next rebuild."
+          n="$1"; [ "$n" = null ] && n=100
+          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 "$n" > "$thresh" 2>/dev/null || true
+          done
+          notify-send "Battery limit" "$2 — applied now."
         }
         case "$sel" in
           "$BACK")   exec "$0" system ;;