refactor: major architectural restructure for theme-centric organization

Theme System:
- Move all theme app configs to apps/ subdirectory (20 themes)
- Add theme-loader.nix for dynamic theme config deployment
- Simplify stylix.nix to focus on base theming only

Override System:
- Add overrides.nix for file-based config overrides
- Add behavior-configs.nix for non-visual configuration
- Split hypr/nomarchy.conf into behavior vs visual sections

Module Improvements:
- Add lib.mkDefault to all customizable settings
- Add modules/lib/ with shared utilities and state schema
- Update all home and system modules for downstream overridability

Installer:
- New minimal TTY installer (installer/install.sh)
- Golden path: BTRFS + LUKS2 (disko-golden.nix)
- New installer-iso.nix for TTY-only installation
- Keep graphical installer as installerIsoGraphical option

Cleanup:
- Remove obsolete install.sh, disko-ext4.nix, install-nomarchy.sh
- Update live-iso.nix references
- Add .claude/ to .gitignore for local IDE settings

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

modules/home/theme-files.nix

@@ -1,14 +1,31 @@
 { config, lib, ... }:
 
+let
+  themePath = ../../assets/themes + "/${config.nomarchy.theme}";
+  themeAppsPath = themePath + "/apps";
+  nordAppsPath = ../../assets/themes/nord/apps;
+
+  # Check if theme has apps/hyprland.conf
+  hasHyprlandConf = builtins.pathExists (themeAppsPath + "/hyprland.conf");
+in
 {
   xdg.configFile."nomarchy/current/theme" = {
-    source = ../../assets/themes/${config.nomarchy.theme};
+    source = themePath;
     recursive = true;
   };
-  
+
   # Ensure theme-specific hyprland config exists, fallback to nord if not
-  xdg.configFile."nomarchy/current/theme/hyprland.conf" = lib.mkIf (! builtins.pathExists (../../assets/themes + "/${config.nomarchy.theme}/hyprland.conf")) {
-    source = ../../assets/themes/nord/hyprland.conf;
+  # Now checking in apps/ subdirectory
+  xdg.configFile."nomarchy/current/theme/apps/hyprland.conf" = lib.mkIf (!hasHyprlandConf) {
+    source = nordAppsPath + "/hyprland.conf";
+  };
+
+  # Legacy compatibility: symlink apps/hyprland.conf to root for scripts expecting old path
+  xdg.configFile."nomarchy/current/theme/hyprland.conf" = {
+    source =
+      if hasHyprlandConf
+      then themeAppsPath + "/hyprland.conf"
+      else nordAppsPath + "/hyprland.conf";
   };
   
   xdg.configFile."nomarchy/current/theme.name".text = config.nomarchy.theme;