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, 69 insertions, 0 deletions

diff --git a/dotfiles/common/.zsh/modules/Src/hashtable.h b/dotfiles/common/.zsh/modules/Src/hashtable.h
new file mode 100644
index 0000000..21398e1
--- /dev/null
+++ b/dotfiles/common/.zsh/modules/Src/hashtable.h
@@ -0,0 +1,69 @@
+/*
+ * hashtable.h - header file for hash table handling code
+ *
+ * This file is part of zsh, the Z shell.
+ *
+ * Copyright (c) 1992-1997 Paul Falstad
+ * All rights reserved.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and to distribute modified versions of this software for any
+ * purpose, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * In no event shall Paul Falstad or the Zsh Development Group be liable
+ * to any party for direct, indirect, special, incidental, or consequential
+ * damages arising out of the use of this software and its documentation,
+ * even if Paul Falstad and the Zsh Development Group have been advised of
+ * the possibility of such damage.
+ *
+ * Paul Falstad and the Zsh Development Group specifically disclaim any
+ * warranties, including, but not limited to, the implied warranties of
+ * merchantability and fitness for a particular purpose.  The software
+ * provided hereunder is on an "as is" basis, and Paul Falstad and the
+ * Zsh Development Group have no obligation to provide maintenance,
+ * support, updates, enhancements, or modifications.
+ *
+ */
+
+/* Builtin function numbers; used by handler functions that handle more *
+ * than one builtin.  Note that builtins such as compctl, that are not  *
+ * overloaded, don't get a number.                                      */
+
+#define BIN_TYPESET   0
+#define BIN_BG        1
+#define BIN_FG        2
+#define BIN_JOBS      3
+#define BIN_WAIT      4
+#define BIN_DISOWN    5
+#define BIN_BREAK     6
+#define BIN_CONTINUE  7
+#define BIN_EXIT      8
+#define BIN_RETURN    9
+#define BIN_CD       10
+#define BIN_POPD     11
+#define BIN_PUSHD    12
+#define BIN_PRINT    13
+#define BIN_EVAL     14
+#define BIN_SCHED    15
+#define BIN_FC       16
+#define BIN_R	     17
+#define BIN_PUSHLINE 18
+#define BIN_LOGOUT   19
+#define BIN_TEST     20
+#define BIN_BRACKET  21
+#define BIN_READONLY 22
+#define BIN_ECHO     23
+#define BIN_DISABLE  24
+#define BIN_ENABLE   25
+#define BIN_PRINTF   26
+#define BIN_COMMAND  27
+#define BIN_UNHASH   28
+#define BIN_UNALIAS  29
+#define BIN_UNFUNCTION  30
+#define BIN_UNSET    31
+
+/* These currently depend on being 0 and 1. */
+#define BIN_SETOPT    0
+#define BIN_UNSETOPT  1