Chore: init settings submdule, move clanDir into settings submodule

lib/build-clan/module.nix

@@ -80,7 +80,10 @@ let
           (
             {
               # Settings
-              clan.core.clanDir = directory;
+              clan.core.settings = {
+                inherit directory;
+              };
+              # clan.core.settings.directory = directory;
               # Inherited from clan wide settings
               # TODO: remove these
               clan.core.name = config.inventory.meta.name;

lib/eval-clan-modules/default.nix

@@ -23,7 +23,7 @@ let
         modules = [
           baseModule
           {
-            clan.core.clanDir = clan-core;
+            clan.core.settings.directory = clan-core;
           }
           clan-core.nixosModules.clanCore
         ] ++ modules;
@@ -75,7 +75,7 @@ let
                   baseModule
                   clan-core.nixosModules.clanCore
                   {
-                    clan.core.clanDir = clan-core;
+                    clan.core.settings.directory = clan-core;
                   }
                   # Role interface
                   (module + "/roles/${role}.nix")