fix: Correct existing subtypes test coverage; add test coverage for

subtype actions; and a subtype action fix.

src/tests/helpers/api.ts

@@ -43,6 +43,10 @@ export class API {
 
   static addSubtype = (record: SubtypeRecord, subtypePrepFn: SubtypePrepFn) => {
     const prep = prepareSubtype(record, subtypePrepFn);
+    if (prep.actions) {
+      h.app.actionManager.registerAll(prep.actions);
+      h.app.actionManager.registerActionGuards();
+    }
     return prep;
   };