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, 140 insertions, 0 deletions

diff --git a/dotfiles/common/.config/calibre/plugins/Favourites Menu.json b/dotfiles/common/.config/calibre/plugins/Favourites Menu.json
new file mode 100644
index 0000000..8f239ba
--- /dev/null
+++ b/dotfiles/common/.config/calibre/plugins/Favourites Menu.json
@@ -0,0 +1,140 @@
+{
+  "menus": [
+    {
+      "display": "Convert books",
+      "path": [
+        "Convert Books"
+      ]
+    },
+    null,
+    {
+      "display": "Start Content server",
+      "path": [
+        "Connect Share",
+        "Start Content server"
+      ]
+    },
+    {
+      "display": "Extract ISBN",
+      "path": [
+        "Extract ISBN"
+      ]
+    },
+    null,
+    {
+      "display": "Add to default list",
+      "path": [
+        "Reading List",
+        "Add to default list"
+      ]
+    },
+    {
+      "display": "Remove from default list",
+      "path": [
+        "Reading List",
+        "Remove from default list"
+      ]
+    },
+    {
+      "display": "View default list",
+      "path": [
+        "Reading List",
+        "View default list"
+      ]
+    },
+    null,
+    {
+      "display": "Find book duplicates...",
+      "path": [
+        "Find Duplicates",
+        "Find book duplicates..."
+      ]
+    },
+    {
+      "display": "Clean comments",
+      "path": [
+        "Clean Comments",
+        "Clean comments"
+      ]
+    },
+    {
+      "display": "Check library",
+      "path": [
+        "Choose Library",
+        "Library maintenance",
+        "Check library"
+      ]
+    },
+    {
+      "display": "Plugin updater",
+      "path": [
+        "Plugin Updater"
+      ]
+    },
+    null,
+    {
+      "display": "Email to...",
+      "path": [
+        "Connect Share",
+        "Email to..."
+      ]
+    },
+    {
+      "display": "email to Christine's Kindle",
+      "path": [
+        "Connect Share",
+        "Email to...",
+        "Christine's Kindle"
+      ]
+    },
+    {
+      "display": "email to Craig's Paperwhite",
+      "path": [
+        "Connect Share",
+        "Email to...",
+        "Paperwhite"
+      ]
+    },
+    {
+      "display": "email to Craig's Pixel6",
+      "path": [
+        "Connect Share",
+        "Email to...",
+        "Pixel6"
+      ]
+    },
+    null,
+    {
+      "display": "Start wireless device connection",
+      "path": [
+        "Connect Share",
+        "Start wireless device connection"
+      ]
+    },
+    {
+      "display": "Stop wireless device connection [192.168.86.26 or 172.17.0.1, port 9090]",
+      "path": [
+        "Connect Share",
+        "Stop wireless device connection [192.168.86.26 or 172.17.0.1, port 9090]"
+      ]
+    },
+    {
+      "display": "Manage collections",
+      "path": [
+        "Edit Collections"
+      ]
+    },
+    {
+      "display": "Get books",
+      "path": [
+        "Store"
+      ]
+    },
+    {
+      "display": "Kindle Collections",
+      "path": [
+        "Kindle Collections"
+      ]
+    }
+  ]
+}
\ No newline at end of file