Two clusters of documented-but-non-functional options surfaced during
the Pillar 8 audit, both setting toggles that have zero runtime effect.
1. `nomarchy.toggles.skipVsCodeTheme` was declared in
core/home/options.nix, defaulted from lib/state-schema.nix, and
surfaced as `NOMARCHY_TOGGLE_SKIP_VSCODE_THEME` env var in
features/scripts/default.nix — but `features/apps/vscode.nix` always
sets `workbench.colorTheme` unconditionally, and no script reads the
env var. Setting the toggle to true did nothing. Removed from
options, schema, state, env-var export, and OPTIONS.md.
2. `nomarchy.themeLoader.apps.{waybar,mako,kitty,alacritty}` were
declared in themes/engine/loader.nix but only `btop` is actually
wired (line 87 gates the per-theme btop.theme deploy). The other
four had no consumer. The actual theming pipeline for those apps is
elsewhere: waybar themes inline from `colorScheme` in waybar.nix;
kitty and alacritty are themed by stylix targets in
themes/engine/stylix.nix; mako has no theme integration at all.
Removed the four dead options + updated OPTIONS.md to list only
btop with a note about where the other apps' theming lives.
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