fix playwright mcp browser runtime

aspects/ai.nix

@@ -22,7 +22,7 @@
         };
       };
     homeManager.ai =
-      { inputs, pkgs, ... }:
+      { config, inputs, pkgs, ... }:
       {
         programs.opencode = {
           enable = true;
@@ -35,7 +35,14 @@
             mcp = {
               playwright = {
                 type = "local";
-                command = [ "mcp-server-playwright" ];
+                command = [
+                  "${pkgs.coreutils}/bin/env"
+                  "PLAYWRIGHT_BROWSERS_PATH=${config.xdg.cacheHome}/playwright-mcp"
+                  "${pkgs.nodejs}/bin/node"
+                  "${pkgs.playwright-mcp}/lib/node_modules/playwright-mcp-internal/cli.js"
+                  "--executable-path"
+                  "/run/current-system/sw/bin/chromium"
+                ];
                 enabled = true;
               };
             };