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, 23 insertions, 0 deletions

diff --git a/dotfiles/common/.config/calibre/metadata_sources/global.json b/dotfiles/common/.config/calibre/metadata_sources/global.json
new file mode 100644
index 0000000..be7665d
--- /dev/null
+++ b/dotfiles/common/.config/calibre/metadata_sources/global.json
@@ -0,0 +1,23 @@
+{
+  "id_link_rules": {
+    "title": [
+      [
+        "Title",
+        "https://z-library.sk/s/?q=title%3A{title}&languages[]=english&extensions[]=EPUB&extensions[]=PDF&selected_content_types[]=book&order=bestmatch"
+      ]
+    ]
+  },
+  "ignore_fields": [
+    "rating",
+    "series"
+  ],
+  "tag_map_rules": [
+    {
+      "action": "remove",
+      "match_type": "not_one_of",
+      "query": "Art, Biography & Autobiography, Business, Chess, Computers, Cooking, Critical Theory, Design, Economics, French, History, Law, Linguistics, Literature, Magic, Mathematics, Music, Mythology, Non-Fiction, Philosophy, Poetry, Political Science, Politics, Psychology, Religion, Science, Social Critique, Sociology, Travel",
+      "replace": ""
+    }
+  ],
+  "txt_comments": true
+}
\ No newline at end of file