refactor(dotfiles): rename system/ to common/ and remove unused configs

Rename dotfiles/system to dotfiles/common for clarity - indicates
shared dotfiles used across all desktop environments (DWM, Hyprland).

Removed config directories for uninstalled applications:
- ghostty (using different terminal)
- lf (using ranger instead)
- mopidy (using mpd instead)
- nitrogen (X11-only, obsolete for Wayland)
- pychess (not installed)
- JetBrains (not installed via archsetup)
- youtube-dl (using yt-dlp with different config location)

Kept audacious config for potential future use.

Updated all references in archsetup, CLAUDE.md, todo.org, and
validation.sh.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/dotfiles/common/.config/sxhkd/sxhkdrc b/dotfiles/common/.config/sxhkd/sxhkdrc
new file mode 100644
index 0000000..16b90c7
--- /dev/null
+++ b/dotfiles/common/.config/sxhkd/sxhkdrc
@@ -0,0 +1,106 @@
+# SXHDRC
+# This is the sxhkdrc for the Simple X Hotkey Daemon.
+# https://github.com/baskerville/sxhkd
+
+
+super + space
+      rofi -show drun
+super + shift + s
+      rofi -show ssh
+
+
+#
+# Browsers
+#
+
+super + w
+      $BROWSER
+super + shift + w
+      $ALTBROWSER
+ctrl + alt + w
+	  tor-browser
+
+#
+# Applications
+#
+
+# Emacs
+super + e
+	  emacsclient -c -a "" || emacs
+
+# File Manager
+control + alt + f
+      nautilus
+
+# Virtualbox
+super + v
+      virtualbox
+
+
+# Library
+super + shift + l
+      calibre
+
+# Radio
+super + shift + r
+      shortwave
+
+#
+# Music 
+#
+# super + slash
+#       st -e ncmpcpp
+# ctrl + alt + slash
+# 	 easytag ~/music
+
+
+#
+# Accessories
+#
+
+
+# Colorpicker
+super + c
+ 	  xcolor | xsel -b
+
+# Screenshots
+super + s
+      file="$(date +%Y.%m.%d-%M%S).png" && maim ~/pictures/screenshots/$file && \
+      notify-send "screenshot" "Image saved to ~/Pictures/screenshots/$file"
+
+#
+# System 
+# 
+
+# Audio Keys
+XF86AudioMute
+    amixer -q -D pulse sset Master toggle  && 
+XF86Audio{Raise,Lower}Volume
+    pactl -- set-sink-volume 0 {+,-}10% && 
+
+# Brightness Keys
+XF86MonBrightnessUp
+    brightnessctl s +10% && notify-send "Brightness" "Brightness increased"
+XF86MonBrightnessDown
+    brightnessctl s 10%- && notify-send "Brightness" "Brightness decreased"
+
+# Microphone Toggle
+control + alt + space
+      amixer set Capture toggle && amixer get Capture | grep '\[off\]' && notify-send "Microphone" "Microphone muted" || notify-send "Microphone" "Microphone on"
+
+# Bluetooth
+super + shift + b
+      blueman-manager
+
+# Lock Screen
+super + Escape
+      slock & 
+
+#
+# Keybinding 
+#
+
+super + k
+      $EDITOR ~/.config/sxhkd/sxhkdrc && notify-send "Keyboard Shortcuts" "Editing shortcuts"
+super + shift + k
+      sudo killall sxhkd && sxhkd && notify-send "Keyboard Shortcuts" "Keyboard shortcuts reloaded"