fix: revert zellij-ps workaround, remove nixpkgs.config (useGlobalPkgs handles it)

profiles/base/cli-tools/zellij-ps.nix

@@ -1,12 +1,10 @@
-# Zellij-ps — project-aware Zellij session manager.
-# Installs the zellij-ps package directly and sets project folders.
-# Note: Does NOT use the m3ta-nixpkgs cli.zellij-ps module to avoid
-# overlay dependency issues when m3ta-home is used standalone.
+# Zellij-ps — project-aware Zellij session manager from m3ta-nixpkgs.
+# Delegates to `cli.zellij-ps` — the home-manager module namespace provided by
+# m3ta-nixpkgs. Requires m3ta-nixpkgs overlays to be applied to pkgs
+# (via home-manager.useGlobalPkgs = true in NixOS, or overlays in standalone).
 {
   config,
   lib,
-  pkgs,
-  inputs,
   ...
 }:
 with lib; let
@@ -24,9 +22,9 @@ in {
   };
 
   config = mkIf cfg.enable {
-    home.packages = [
-      (inputs.m3ta-nixpkgs.packages.${pkgs.stdenv.hostPlatform.system}.zellij-ps or pkgs.zellij-ps)
-    ];
-    home.sessionVariables.PROJECT_FOLDERS = lib.concatStringsSep ":" (map toString cfg.projectFolders);
+    cli.zellij-ps = {
+      enable = true;
+      projectFolders = cfg.projectFolders;
+    };
   };
 }

profiles/base/default.nix

@@ -30,10 +30,9 @@
   ];
 
   # ── nixpkgs configuration ──
-  nixpkgs.config = {
-    allowUnfree = true;
-    allowUnfreePredicate = _: true;
-  };
+  # NOTE: When used via NixOS with useGlobalPkgs=true, nixpkgs.config is
+  # managed at the NixOS level. Only set it here for standalone HM usage.
+  # nixpkgs.config.allowUnfree = true;
 
   # ── Nix settings ──
   nix = {