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, 0 insertions, 24 deletions

diff --git a/dotfiles/system/.zshrc.d/emacs.sh b/dotfiles/system/.zshrc.d/emacs.sh
deleted file mode 100644
index 0a8444b..0000000
--- a/dotfiles/system/.zshrc.d/emacs.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-# emacs.sh
-# Craig Jennings <c@cjennings.net>
-# Emacs-specific settings and functions
-
-# GTK/Emacs accessibility bug workaround
-# https://unix.stackexchange.com/questions/230238/
-export NO_AT_BRIDGE=1
-
-# Wake emacs from elisp freeze
-alias emacswake='for i in $(seq 1 500); do killall -s USR2 emacs; done'
-
-# Vterm shell integration
-# Allows shell to send information to vterm via escape sequences
-vterm_printf() {
-    if [ -n "$TMUX" ] && { [ "${TERM%%-*}" = "tmux" ] || [ "${TERM%%-*}" = "screen" ]; }; then
-        # Tell tmux to pass the escape sequences through
-        printf "\ePtmux;\e\e]%s\007\e\\" "$1"
-    elif [ "${TERM%%-*}" = "screen" ]; then
-        # GNU screen
-        printf "\eP\e]%s\007\e\\" "$1"
-    else
-        printf "\e]%s\e\\" "$1"
-    fi
-}