made development into an option

added it to configuration

modules/development/options.nix

@@ -0,0 +1,30 @@
+{ lib, ... }:
+{
+  options.workstation.development = {
+    enable = lib.mkEnableOption "the basic development toolkit";
+
+    clang = {
+      enable = lib.mkEnableOption "the clang toolkit";
+    };
+
+    claude = {
+      enable = lib.mkEnableOption "the AI harness";
+    };
+
+    go = {
+      enable = lib.mkEnableOption "the go toolkit";
+    };
+
+    python = {
+      enable = lib.mkEnableOption "the python toolkit";
+    };
+
+    rust = {
+      enable = lib.mkEnableOption "the rust toolkit";
+    };
+
+    typescript = {
+      enable = lib.mkEnableOption "the typescript toolkit";
+    };
+  };
+}