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/bash.nix

@@ -3,19 +3,17 @@
 {
   programs.bash = {
     enable = true;
-    
-    # Safely append user's custom RC file after NixOS setup
+
     bashrcExtra = ''
       if [[ -f ~/.config/nomarchy/default/bash/rc ]]; then
         source ~/.config/nomarchy/default/bash/rc
       fi
     '';
 
-    # Import aliases from the static file logic
     shellAliases = lib.mkDefault {
       # File system
       lsa = "ls -a";
-      
+
       # Directories
       ".." = "cd ..";
       "..." = "cd ../..";
@@ -32,14 +30,10 @@
       gcm = "git commit -m";
       gcam = "git commit -a -m";
       gcad = "git commit -a --amend";
-      
-      # NixOS specific (inherited from default.nix but keeping here for consistency)
+
+      # NixOS commands
       sys-update = "sudo nixos-rebuild switch --flake /etc/nixos#default --impure";
       env-update = "nomarchy-preflight-migration && home-manager switch --flake /etc/nixos#default --impure";
     };
   };
-
-  # Ensure the directory exists in the user's home via xdg.configFile
-  # This mapping is likely already handled in configs.nix, but we ensure it here
-  # or in the main config mapping.
 }