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>

3 files changed, 0 insertions, 30 deletions

diff --git a/dotfiles/system/.config/systemd/user/emacs.service b/dotfiles/system/.config/systemd/user/emacs.service
deleted file mode 100644
index 0e3a102..0000000
--- a/dotfiles/system/.config/systemd/user/emacs.service
+++ /dev/null
@@ -1,19 +0,0 @@
-[Unit]
-Description=Emacs text editor
-Documentation=info:emacs man:emacs(1) https://gnu.org/software/emacs/
-
-[Service]
-Type=notify
-ExecStart=/home/cjennings/.local/bin/emacs --fg-daemon
-
-# Emacs will exit with status 15 after having received SIGTERM, which
-# is the default "KillSignal" value systemd uses to stop services.
-SuccessExitStatus=15
-
-# The location of the SSH auth socket varies by distribution, and some
-# set it from PAM, so don't override by default.
-# Environment=SSH_AUTH_SOCK=%t/keyring/ssh
-Restart=on-failure
-
-[Install]
-WantedBy=default.target
diff --git a/dotfiles/system/.config/systemd/user/geoclue-agent.service b/dotfiles/system/.config/systemd/user/geoclue-agent.service
deleted file mode 100644
index 9f2adc0..0000000
--- a/dotfiles/system/.config/systemd/user/geoclue-agent.service
+++ /dev/null
@@ -1,8 +0,0 @@
-[Unit]
-Description=redshift needs to get a (geo)clue
-
-[Service]
-ExecStart=/usr/lib/geoclue-2.0/demos/agent
-
-[Install]
-WantedBy=default.target
diff --git a/dotfiles/system/.config/systemd/user/xdg-desktop-portal-gtk.service.d/environment.conf b/dotfiles/system/.config/systemd/user/xdg-desktop-portal-gtk.service.d/environment.conf
deleted file mode 100644
index e8c5e8f..0000000
--- a/dotfiles/system/.config/systemd/user/xdg-desktop-portal-gtk.service.d/environment.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-[Service]
-Environment="DISPLAY=:0"
-Environment="XAUTHORITY=/home/cjennings/.Xauthority"
\ No newline at end of file