refactor: restructure config files

modules/capabilities/services/caddy.nix

@@ -0,0 +1,13 @@
+{ config, ... }:
+let
+  repo = config.repo;
+in
+{
+  flake.modules.nixos.caddy = {
+    services.caddy = {
+      enable = true;
+      email = repo.account.primaryEmail.address;
+      openFirewall = true;
+    };
+  };
+}