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, 44 insertions, 0 deletions

diff --git a/dotfiles/common/.local/bin/msmtp-enqueue.sh b/dotfiles/common/.local/bin/msmtp-enqueue.sh
new file mode 100755
index 0000000..c9beaca
--- /dev/null
+++ b/dotfiles/common/.local/bin/msmtp-enqueue.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env sh
+
+QUEUEDIR=$HOME/.msmtpqueue
+
+# Set secure permissions on created directories and files
+umask 077
+
+# Change to queue directory (create it if necessary)
+if [ ! -d "$QUEUEDIR" ]; then
+	mkdir -p "$QUEUEDIR" || exit 1
+fi
+cd "$QUEUEDIR" || exit 1
+
+# Create new unique filenames of the form
+# MAILFILE:  ccyy-mm-dd-hh.mm.ss[-x].mail
+# MSMTPFILE: ccyy-mm-dd-hh.mm.ss[-x].msmtp
+# where x is a consecutive number only appended if you send more than one
+# mail per second.
+BASE="$(date +%Y-%m-%d-%H.%M.%S)"
+if [ -f "$BASE.mail" ] || [ -f "$BASE.msmtp" ]; then
+	TMP="$BASE"
+	i=1
+	while [ -f "$TMP-$i.mail" ] || [ -f "$TMP-$i.msmtp" ]; do
+		i=$((i + 1))
+	done
+	BASE="$BASE-$i"
+fi
+MAILFILE="$BASE.mail"
+MSMTPFILE="$BASE.msmtp"
+
+# Write command line to $MSMTPFILE
+echo "$@" > "$MSMTPFILE" || exit 1
+
+# Write the mail to $MAILFILE
+cat > "$MAILFILE" || exit 1
+
+# If we are online, run the queue immediately.
+# Replace the test with something suitable for your site.
+#ping -c 1 -w 2 SOME-IP-ADDRESS > /dev/null
+#if [ $? -eq 0 ]; then
+#	msmtp-runqueue.sh > /dev/null &
+#fi
+
+exit 0