refactor: implement component-based architecture for enhanced maintainability

- Reorganize directory structure into core/, features/, and themes/
- Colocate application Nix logic, configs, scripts, and theme overrides
- Implement 'Inversion of Control' for theming: apps now pull theme-specific layouts
- Update flake.nix and shared library paths to match the new structure
- Document the new Feature-Centric architecture in README.md

themes/engine/files.nix

@@ -0,0 +1,58 @@
+{ config, lib, ... }:
+
+let
+  themePath = ../palettes + "/${config.nomarchy.theme}";
+  themeAppsPath = themePath + "/apps";
+  nordAppsPath = ../palettes/nord/apps;
+
+  # Check if theme has apps/hyprland.conf
+  hasHyprlandConf = builtins.pathExists (themeAppsPath + "/hyprland.conf");
+in
+{
+  xdg.configFile."nomarchy/current/theme" = {
+    source = themePath;
+    recursive = true;
+  };
+
+  # Ensure theme-specific hyprland config exists, fallback to nord if not
+  # 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;
+
+  # Expose branding assets
+  xdg.configFile."nomarchy/branding/logo.png".source = ../../core/branding/logo.png;
+  xdg.configFile."nomarchy/branding/logo.txt".source = ../../core/branding/logo.txt;
+  xdg.configFile."nomarchy/branding/logo.svg".source = ../../core/branding/logo.svg;
+  xdg.configFile."nomarchy/branding/icon.png".source = ../../core/branding/icon.png;
+  xdg.configFile."nomarchy/branding/icon.txt".source = ../../core/branding/icon.txt;
+
+  # Expose all themes to the system via local share for script accessibility
+  # We filter out images to prevent Nix Store bloat
+  xdg.dataFile."nomarchy/themes".source = builtins.path {
+    name = "nomarchy-themes-no-images";
+    path = ../palettes;
+    filter = path: type: 
+      let 
+        baseName = baseNameOf path;
+      in
+        ! (type == "regular" && (
+          lib.hasSuffix ".jpg" baseName || 
+          lib.hasSuffix ".png" baseName || 
+          lib.hasSuffix ".jpeg" baseName
+        ));
+  };
+
+  # Nautilus python extensions
+  xdg.dataFile."nautilus-python/extensions/localsend.py".source = ../../core/home/config/nautilus-python/extensions/localsend.py;
+}