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, 329 deletions

diff --git a/dotfiles/system/.config/qalculate/qalculate-gtk.cfg b/dotfiles/system/.config/qalculate/qalculate-gtk.cfg
deleted file mode 100644
index 22d7f45..0000000
--- a/dotfiles/system/.config/qalculate/qalculate-gtk.cfg
+++ /dev/null
@@ -1,329 +0,0 @@
-
-[General]
-version=5.9.0
-allow_multiple_instances=-1
-width=1167
-always_on_top=0
-enable_tooltips=1
-error_info_shown=1
-save_mode_on_exit=1
-save_definitions_on_exit=1
-save_history_separately=0
-auto_update_exchange_rates=-1
-clear_history_on_exit=0
-history_expression_type=2
-use_custom_history_font=0
-use_custom_expression_font=0
-replace_expression=0
-enable_completion=1
-enable_completion2=1
-completion_min=1
-completion_min2=1
-completion_delay=0
-use_custom_status_font=0
-vertical_button_padding=-1
-horizontal_button_padding=-1
-use_custom_keypad_font=0
-latest_button_currency=USD
-use_custom_result_font=0
-continuous_conversion=1
-set_missing_prefixes=0
-show_bases_keypad=1
-keep_function_dialog_open=0
-ignore_locale=0
-load_global_definitions=1
-local_currency_conversion=1
-use_binary_prefixes=0
-check_version=0
-show_keypad=1
-show_history=0
-history_height=0
-minimal_width=500
-show_stack=1
-show_convert=0
-persistent_keypad=0
-minimal_mode=0
-rpn_keys=1
-display_expression_status=1
-parsed_expression_in_resultview=0
-calculate_as_you_type_history_delay=2000
-use_unicode_signs=1
-lower_case_numbers=0
-duodecimal_symbols=0
-exp_display=3
-imaginary_j=0
-base_display=1
-twos_complement=1
-hexadecimal_twos_complement=0
-twos_complement_input=0
-hexadecimal_twos_complement_input=0
-spell_out_logical_operators=1
-caret_as_xor=0
-close_with_esc=-1
-digit_grouping=1
-copy_ascii=0
-copy_ascii_without_units=0
-decimal_comma=-1
-dot_as_separator=0
-comma_as_separator=1
-use_custom_application_font=0
-multiplication_sign=2
-division_sign=1
-expression_history=125×7×6
-expression_history=7600×4
-expression_history=7600X4
-expression_history=10619.57−3000
-expression_history=1991−1964
-expression_history=(5×75)+150
-expression_history=5×75
-expression_history=100−35
-expression_history=262690−165393.50
-expression_history=212770+24960
-expression_history=212770−24960
-expression_history=49920/2
-expression_history=262690−212770
-expression_history=68/24
-expression_history=168/197
-expression_history=197/168
-expression_history=262690−19100
-expression_history=38200/2
-expression_history=$38,200/2
-expression_history=30000/197000
-expression_history=197250+6360+6140+3840
-expression_history=4550+4050
-expression_history=4,500+4060
-expression_history=490×6
-expression_history=7688.16×4
-expression_history=3277.52+46.85
-expression_history=3310.94+109.04
-expression_history=3277.52+46.86
-expression_history=30 + 15 + 5 + 10 + 30 + 30
-expression_history=30 +5+15+30+20+20
-expression_history=30 + 5  + 15 + 30 + 20 + 5 + 5 + 20
-expression_history=1024×16
-expression_history=3278×12
-expression_history=1026×16
-expression_history=96×2
-history_time=1768330887
-history_expression=125×7×6
-history_parse=125 × 7 × 6
-history_result=5250
-history_time=1767984868
-history_expression=7600×4
-history_parse=7600 × 4
-history_result=30 400
-history_time=1767984861
-history_expression=7600X4
-history_parse=7600
-history_error=Trailing characters "X4" (not a valid variable/function/unit) in number "7600X4" were ignored.
-history_result=7600
-history_time=1767984665
-history_expression=10619.57−3000
-history_parse=10 619.57 − 3000
-history_result=7619.57
-history_time=1767807514
-history_expression=1991−1964
-history_parse=1991 − 1964
-history_result=27
-history_time=1766252840
-history_expression=(5×75)+150
-history_parse=(5 × 75) + 150
-history_result=525
-history_time=1766252831
-history_expression=5×75
-history_parse=5 × 75
-history_result=375
-history_time=1764874377
-history_expression=100−35
-history_parse=100 − 35
-history_result=65
-history_time=1762832920
-history_expression=262690−165393.50
-history_parse=262 690 − 165 393.5
-history_result=97 296.5
-history_time=1762825204
-history_expression=212770+24960
-history_parse=212 770 + 24 960
-history_result=237 730
-history_time=1762825199
-history_expression=212770−24960
-history_parse=212 770 − 24 960
-history_result=187 810
-history_time=1762825172
-history_expression=49920/2
-history_parse=49 920 ∕ 2
-history_result=24 960
-history_time=1762823711
-history_expression=262690−212770
-history_parse=262 690 − 212 770
-history_result=49 920
-history_time=1762731979
-history_expression=68/24
-history_parse=68 ∕ 24
-history_result_approximate=2.833 333 333
-history_time=1762176587
-history_expression=168/197
-history_parse=168 ∕ 197
-history_result_approximate=0.852 791 878 2
-history_time=1762176579
-history_expression=197/168
-history_parse=197 ∕ 168
-history_result_approximate=1.172 619 048
-history_time=1761510158
-history_expression=262690−19100
-history_parse=262 690 − 19 100
-history_result=243 590
-history_time=1761508703
-history_expression=38200/2
-history_parse=38 200 ∕ 2
-history_result=19 100
-history_time=1761508667
-history_expression=$38,200/2
-history_parse=(USD × 38 200) ∕ 2
-history_result=$19 100
-history_time=1761449979
-history_expression=30000/197000
-history_parse=30 000 ∕ 197 000
-history_result_approximate=0.152 284 264 0
-history_time=1761245928
-history_expression=197250+6360+6140+3840
-history_parse=197 250 + 6360 + 6140 + 3840
-history_result=213 590
-history_time=1761167849
-history_expression=4550+4050
-history_parse=4550 + 4050
-history_result=8600
-history_time=1761167803
-history_expression=4,500+4060
-history_parse=4500 + 4060
-history_result=8560
-history_time=1752350332
-history_expression=490×6
-history_parse=490 × 6
-history_result=2940
-history_time=1752334636
-history_expression=7688.16×4
-history_parse=7688.16 × 4
-history_result=30 752.64
-history_time=1751310907
-history_expression=3277.52+46.85
-history_parse=3277.52 + 46.85
-history_result=3324.37
-history_time=1751310861
-history_expression=3310.94+109.04
-history_parse=3310.94 + 109.04
-history_result=3419.98
-history_time=1751310628
-history_expression=3277.52+46.86
-history_parse=3277.52 + 46.86
-history_result=3324.38
-history_time=1750342970
-history_expression=30 + 15 + 5 + 10 + 30 + 30
-history_parse=30 + 15 + 5 + 10 + 30 + 30
-history_result=120
-history_time=1750342955
-history_expression=30 +5+15+30+20+20
-history_parse=30 + 5 + 15 + 30 + 20 + 20
-history_result=120
-history_time=1750342806
-history_expression=30 + 15 + 5 + 10 + 30 + 30
-history_parse=30 + 15 + 5 + 10 + 30 + 30
-history_result=120
-history_time=1750342726
-history_expression=30 + 5  + 15 + 30 + 20 + 5 + 5 + 20
-history_parse=30 + 5 + 15 + 30 + 20 + 5 + 5 + 20
-history_result=130
-history_time=1749150165
-history_expression=1024×16
-history_parse=1024 × 16
-history_result=16 384
-history_time=1748972784
-history_expression=3278×12
-history_parse=3278 × 12
-history_result=39 336
-history_time=1748621453
-history_expression=1026×16
-history_parse=1026 × 16
-history_result=16 416
-history_time=1747760701
-history_expression=96×2
-history_parse=96 × 2
-history_result=192
-recent_functions=
-recent_variables=
-recent_units=
-
-[Mode]
-min_deci=0
-use_min_deci=0
-max_deci=2
-use_max_deci=0
-precision=10
-interval_arithmetic=1
-interval_display=0
-min_exp=-1
-negative_exponents=0
-sort_minus_last=1
-number_fraction_format=0
-complex_number_form=0
-use_prefixes=1
-use_prefixes_for_all_units=0
-use_prefixes_for_currencies=0
-abbreviate_names=1
-all_prefixes_enabled=0
-denominator_prefix_enabled=1
-place_units_separately=1
-auto_post_conversion=3
-mixed_units_conversion=3
-number_base=10
-number_base_expression=10
-read_precision=0
-assume_denominators_nonzero=1
-warn_about_denominators_assumed_nonzero=1
-structuring=1
-angle_unit=1
-functions_enabled=1
-variables_enabled=1
-calculate_functions=1
-calculate_variables=1
-variable_units_enabled=1
-sync_units=1
-unknownvariables_enabled=0
-units_enabled=1
-allow_complex=1
-allow_infinite=1
-indicate_infinite_series=0
-show_ending_zeroes=1
-rounding_mode=0
-approximation=1
-interval_calculation=1
-concise_uncertainty_input=0
-calculate_as_you_type=0
-in_rpn_mode=0
-chain_mode=0
-limit_implicit_multiplication=0
-parsing_mode=0
-simplified_percentage=-1
-spacious=1
-excessive_parenthesis=0
-visible_keypad=0
-short_multiplication=1
-default_assumption_type=4
-default_assumption_sign=0
-
-[Plotting]
-plot_legend_placement=2
-plot_style=0
-plot_smoothing=0
-plot_display_grid=1
-plot_full_border=0
-plot_min=0
-plot_max=10
-plot_step=1
-plot_sampling_rate=1001
-plot_use_sampling_rate=1
-plot_variable=x
-plot_rows=0
-plot_type=0
-plot_color=1
-plot_linewidth=2