feat: script context defaults

app/util/script.js

@@ -29,12 +29,21 @@ export default class Script {
     return this.sandbox.context;
   }
 
+  static contextDefaults() {
+    return {
+      console,
+      Math,
+      wait: (ms) => new Promise((resolve) => { setTimeout(resolve, ms); }),
+    };
+  }
+
   static createContext(locals = {}) {
     if (locals[Populated]) {
       return locals;
     }
     return {
       [Populated]: true,
+      ...this.contextDefaults(),
       ...locals,
     };
   }