chore: add _file annotations to modules

Author: tomeon

nix/home-modules.nix

@@ -23,6 +23,8 @@
 
         cfg = config.services.asd;
       in {
+        _file = ./home-modules.nix;
+
         options.services.asd = mkOption {
           type = types.submodule (lib.const {
             imports = [asd-lib.modules.instance];

nix/nixos-modules.nix

@@ -31,6 +31,8 @@
           };
         });
       in {
+        _file = ./nixos-modules.nix;
+
         options.services.asd = {
           package = mkPackageOption {
             default = perSystem.config.packages.anything-sync-daemon;