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, 14 insertions, 0 deletions

diff --git a/dotfiles/common/.config/calibre/server-custom-list-template.json b/dotfiles/common/.config/calibre/server-custom-list-template.json
new file mode 100644
index 0000000..f5cad2c
--- /dev/null
+++ b/dotfiles/common/.config/calibre/server-custom-list-template.json
@@ -0,0 +1,14 @@
+{
+    "comments_fields": [
+        "comments"
+    ],
+    "height": "auto",
+    "lines": [
+        "<b>{title}</b> by {authors}",
+        "{series_index} of <i>{series}</i>|||{rating}",
+        "{tags}",
+        "Date: {timestamp}|||Published: {pubdate}|||Publisher: {publisher}"
+    ],
+    "thumbnail": true,
+    "thumbnail_height": 140
+}
\ No newline at end of file