fix: thread selfPath through mkHome for m3taHome.paths.srcRoot

lib/mkHome.nix

@@ -19,7 +19,7 @@
 #   m3ta.home.sets.coding.languages.python.extra = true;
 #   wayland.windowManager.hyprland.settings.monitor = [ ... ];
 #
-{inputs}: let
+{inputs, selfPath}: let
   lib = inputs.nixpkgs.lib;
 in {
   mkHome = {
@@ -80,6 +80,8 @@ in {
   in {
     imports =
       [
+        # Paths module — must be first, provides m3taHome.paths.srcRoot
+        ../modules/paths.nix
         baseModule
         preferencesPath
         identityPath
@@ -87,6 +89,9 @@ in {
       ++ contextImport
       ++ setImports;
 
+    # Set the flake source root for asset path resolution
+    m3taHome.paths.srcRoot = selfPath;
+
     assertions =
       [
         {