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, 25 deletions

diff --git a/dotfiles/system/.zsh/modules/Test/B06fc.ztst b/dotfiles/system/.zsh/modules/Test/B06fc.ztst
deleted file mode 100644
index 922b001..0000000
--- a/dotfiles/system/.zsh/modules/Test/B06fc.ztst
+++ /dev/null
@@ -1,25 +0,0 @@
-# Tests of fc command
-%prep
-
- mkdir fc.tmp 
- cd fc.tmp
- print 'fc -l foo' >fcl
- 
-%test
-  $ZTST_testdir/../Src/zsh -f ./fcl
-1:Checking that fc -l foo doesn't core dump when history is empty
-?./fcl:fc:1: event not found: foo
-
-  PS1='%% ' $ZTST_testdir/../Src/zsh +Z -fsi <<< $'fc -p /dev/null 0 0\n:'
-0:Checking that fc -p doesn't core dump when history size is zero
-*?*%*
-
-  PS1='%% ' $ZTST_testdir/../Src/zsh +Z -fsi <<< 'fc -p /dev/null a 0'
-1:Checking that fc -p rejects non-integer history size
-*?*% fc: HISTSIZE must be an integer
-*?*%*
-
-  PS1='%% ' $ZTST_testdir/../Src/zsh +Z -fsi <<< 'fc -p /dev/null 0 a'
-1:Checking that fc -p rejects non-integer history save size
-*?*% fc: SAVEHIST must be an integer
-*?*%*