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, 71 deletions

diff --git a/dotfiles/system/.config/ncmpcpp/config b/dotfiles/system/.config/ncmpcpp/config
deleted file mode 100644
index 6520d5a..0000000
--- a/dotfiles/system/.config/ncmpcpp/config
+++ /dev/null
@@ -1,71 +0,0 @@
-# Connection
-mpd_host = "127.0.0.1"
-# mpd_host = "/home/cjennings/.config/mpd/socket"
-mpd_port = "6600"
-mpd_music_dir = "/home/cjennings/music"
-mpd_connection_timeout = "10"
-mpd_crossfade_time = "1"
-
-# Visualizer
-visualizer_data_source = "/tmp/mpd.fifo"
-visualizer_output_name = "FIFO"
-visualizer_in_stereo = "yes"
-visualizer_type = "wave_filled"
-visualizer_color = 246,245,244,243,242,241,240,239,238,237,236,235
-visualizer_look = "|○"
-
-# Columns
-song_columns_list_format = "(3f)[239]{} (35)[246]{t|f} (30)[blue]{a} (30)[green]{b} (5f)[240]{l}"
-song_list_format = "{$5 %a$9 $1│$9 $8%t$9 }|{ $8%f$9}$R{$5%b $7}"
-song_status_format = "{{{$5%a$9}} $8-$9 {$2%t$9}|{$0%f$9}{ $8-$9 $3%b$9{ $8-$9 $5%y$9}}}"
-song_library_format = "{%n $8-$9 }{%t}|{%f}"
-now_playing_prefix = "$8$b ➤ "
-browser_playlist_prefix = "playlist"
-selected_item_prefix = "$5"
-selected_item_suffix = "$9"
-song_window_title_format = "{%t}|{%f} - {%a}"
-
-# Various
-playlist_show_remaining_time = "no"
-playlist_shorten_total_times = "yes"
-playlist_separate_albums = "no"
-playlist_display_mode = "columns"
-browser_display_mode = "columns"
-search_engine_display_mode = "columns"
-discard_colors_if_item_is_selected = "no"
-incremental_seeking = "yes"
-seek_time = "1"
-autocenter_mode = "yes"
-centered_cursor = "yes"
-progressbar_look = "─╼─"
-progressbar_color = 240
-progressbar_elapsed_color = white
-user_interface = "classic"
-header_visibility = "no"
-titles_visibility = "no"
-header_text_scrolling = "yes"
-cyclic_scrolling = "no"
-lines_scrolled = "2"
-follow_now_playing_lyrics = "yes"
-show_hidden_files_in_local_browser = "no"
-jump_to_now_playing_song_at_start = "yes"
-clock_display_seconds = "no"
-display_volume_level = "no"
-display_bitrate = "yes"
-display_remaining_time = "no"
-regular_expressions = "extended"
-ignore_leading_the = "no"
-block_search_constraints_change_if_items_found = "yes"
-mouse_support = "yes"
-mouse_list_scroll_whole_page = "yes"
-external_editor = "vim"
-use_console_editor = "yes"
-colors_enabled = "yes"
-empty_tag_color = "white"
-header_window_color = "yellow"
-state_line_color = "black"
-state_flags_color = "black"
-main_window_color = 243
-statusbar_color = "yellow"
-active_window_border = "yellow"
-