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, 0 insertions, 30 deletions

diff --git a/dotfiles/system/.zsh/modules/Test/README b/dotfiles/system/.zsh/modules/Test/README
deleted file mode 100644
index d012277..0000000
--- a/dotfiles/system/.zsh/modules/Test/README
+++ /dev/null
@@ -1,30 +0,0 @@
-There are now different sections, expressed by the first letter in the
-scripts names:
-
- A: basic command parsing and execution
- B: builtins
- C: shell commands with special syntax
- D: substititution
- E: options
- V: modules
- W: builtin interactive commands and constructs
- X: line editing
- Y: completion
- Z: separate systems and user contributions
-
-You will need to run these by using `make test' in the Test subdirectory of
-the build area for your system (which may or may not be the same as the
-Test subdirectory of the source tree), or the directory above.  You can get
-more information about the tests being performed with
-  ZTST_verbose=1 make check
-(`test' is equivalent to `check') or change 1 to 2 for even more detail.
-
-Individual or groups of tests can be performed with
-  make TESTNUM=C02 check
-or
-  make TESTNUM=C check
-to perform just the test beginning C02, or all tests beginning C,
-respectively.
-
-Instructions on how to write tests are given in B01cd.ztst, which acts as a
-model.