Fix audit findings, replace wlogout with moonset

Bug fixes from quality and security audits:
- moonarch-capsnote: use value[0] instead of value[2]
- moonarch-btnote: guard empty PER_INT before integer comparison
- moonarch-clipboard + niri config: use XDG_RUNTIME_DIR instead of UID 1000
- moonarch-waybar-hidpp: use charging icon when charging
- moonarch-waybar-gpustat: find gpu_busy_percent dynamically across hwmon*
- post-install/transform: use systemctl --user cat for service detection
- post-install/transform: install paru from [extra] instead of AUR clone

Replace wlogout with moonset in niri keybind and waybar on-click.
Remove moonarch-session (dead code, replaced by moonset) and wlogout
layout config.

defaults/xdg/niri/config.kdl

@@ -84,8 +84,8 @@ spawn-at-startup "/usr/lib/polkit-gnome/polkit-gnome-authentication-agent-1"
 spawn-sh-at-startup "waypaper --restore"
 // spawn-sh-at-startup "nemo . &> /dev/null &"
 spawn-sh-at-startup "foot --server"
-spawn-sh-at-startup "mkdir -p /run/user/1000/cliphist && wl-paste --watch cliphist -db-path /run/user/1000/cliphist/db store"
-spawn-sh-at-startup "mkdir -p /run/user/1000/cliphist && wl-paste --type image --watch cliphist -db-path /run/user/1000/cliphist/db store"
+spawn-sh-at-startup "mkdir -p $XDG_RUNTIME_DIR/cliphist && wl-paste --watch cliphist -db-path $XDG_RUNTIME_DIR/cliphist/db store"
+spawn-sh-at-startup "mkdir -p $XDG_RUNTIME_DIR/cliphist && wl-paste --type image --watch cliphist -db-path $XDG_RUNTIME_DIR/cliphist/db store"
 
 hotkey-overlay {
     hide-not-bound
@@ -134,7 +134,7 @@ binds {
 
     Mod+Return hotkey-overlay-title="Open a Terminal: foot" { spawn "foot"; }
     Mod+Space hotkey-overlay-title="Run an Application: rofi" { spawn-sh "pkill rofi || moonarch-launcher"; }
-    Super+Alt+L hotkey-overlay-title="Lock/Logout: wlogout" { spawn-sh "wlogout -P 1 -s -r 10 -c 10"; }
+    Super+Alt+L hotkey-overlay-title="Session Menu: moonset" { spawn "moonset"; }
 
     Mod+A { spawn-sh "pkill rofi || moonarch-volume"; }
 

defaults/xdg/waybar/config

@@ -177,7 +177,7 @@
     },
     "custom/power": {
         "format": "󰣇",
-        "on-click": "wlogout",
+        "on-click": "moonset",
         "tooltip-format": "Session Menu"
     },
     "gamemode": {

defaults/xdg/wlogout/layout

@@ -1,38 +0,0 @@
-// ABOUTME: Moonarch default wlogout layout.
-// ABOUTME: User overrides go in ~/.config/wlogout/layout
-{
-    "label" : "lock",
-    "action" : "gtklock",
-    "text" : "Lock",
-    "keybind" : "l"
-}
-{
-    "label" : "hibernate",
-    "action" : "systemctl hibernate",
-    "text" : "Hibernate",
-    "keybind" : "h"
-}
-{
-    "label" : "logout",
-    "action" : "niri msg action quit",
-    "text" : "Logout",
-    "keybind" : "e"
-}
-{
-    "label" : "shutdown",
-    "action" : "systemctl poweroff",
-    "text" : "Shutdown",
-    "keybind" : "s"
-}
-{
-    "label" : "suspend",
-    "action" : "systemctl suspend",
-    "text" : "Suspend",
-    "keybind" : "u"
-}
-{
-    "label" : "reboot",
-    "action" : "systemctl reboot",
-    "text" : "Reboot",
-    "keybind" : "r"
-}