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

features/apps/vscode.nix

@@ -0,0 +1,53 @@
+{ config, pkgs, lib, ... }:
+
+let
+  themeConfig = builtins.fromJSON (builtins.readFile (../../assets/themes + "/${config.nomarchy.theme}/vscode.json"));
+
+  # Development extensions that match the system theme
+  devExtensions = with pkgs.vscode-extensions; [
+    # Language support
+    ms-python.python
+    rust-lang.rust-analyzer
+    golang.go
+    jnoortheen.nix-ide
+
+    # Git integration
+    eamodio.gitlens
+
+    # Editor enhancements
+    esbenp.prettier-vscode
+    dbaeumer.vscode-eslint
+    bradlc.vscode-tailwindcss
+
+    # Theme extensions (provide color themes matching nomarchy palettes)
+    catppuccin.catppuccin-vsc
+    enkia.tokyo-night
+    arcticicestudio.nord-visual-studio-code
+    sainnhe.everforest
+    mvllow.rose-pine
+  ];
+in
+{
+  options.nomarchy.vscode = {
+    devExtensions = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      description = "Whether to install development extensions for VSCode.";
+    };
+  };
+
+  config = {
+    programs.vscode = {
+      enable = lib.mkDefault true;
+      package = lib.mkDefault pkgs.vscode;
+      userSettings = lib.mkDefault {
+        "update.mode" = "none";
+        "workbench.colorTheme" = themeConfig.name;
+        "window.titleBarStyle" = "custom";
+        "editor.fontFamily" = "'${config.nomarchy.fonts.monospace}', 'Droid Sans Mono', monospace";
+        "terminal.integrated.fontFamily" = config.nomarchy.fonts.monospace;
+      };
+      extensions = lib.mkIf config.nomarchy.vscode.devExtensions (lib.mkDefault devExtensions);
+    };
+  };
+}