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, 32 deletions

diff --git a/dotfiles/system/.zshrc.d/git.sh b/dotfiles/system/.zshrc.d/git.sh
deleted file mode 100644
index 6c2b6ad..0000000
--- a/dotfiles/system/.zshrc.d/git.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-# git.sh
-# Craig Jennings <c@cjennings.net>
-# Git aliases and convenience functions
-
-# =============================================================================
-# Aliases
-# =============================================================================
-alias gitlog="git log --graph --pretty=format:'%Cred%h%Creset %an: %s - %Creset %C(yellow)%d%Creset %Cgreen(%cr)%Creset' --abbrev-commit --date=relative"
-alias gitstatus='git status -sb'
-alias gitcom='git commit -m'
-alias gitpp='git pull --prune'
-alias gittagbydate="git for-each-ref --sort=creatordate --format '%(refname) %(creatordate)' refs/tags"
-
-# =============================================================================
-# Functions
-# =============================================================================
-
-# Stash, pull, pop
-gitsp() {
-    git stash && git pull && git stash pop
-}
-
-# Checkout branch with fzf
-gitck() {
-    git checkout "$(git branch --all | fzf | tr -d '[:space:]')"
-}
-
-# Diff with fzf preview
-gitdiff() {
-    preview="git diff $@ --color=always -- {-1}"
-    git diff "$@" --name-only | fzf -m --ansi --preview "$preview"
-}