fix(gems): use the correct captp option and fix customKind bugs

packages/gems/docs.md

@@ -0,0 +1,8 @@
+you need to defineClass every session. calling registerClass once ensures this happens every session. but if your code is running every session, just call defineClass
+
+if it crosses a vat or is put in storage it needs to be durable so it needs to be defined
+
+defineClass happens once
+registerClass happens every start
+incubate happens once
+registerIncubation happens every start

packages/gems/index.js

@@ -0,0 +1 @@
+export { makeKernel } from './src/kernel.js';

packages/gems/src/custom-kind.js

@@ -25,6 +25,12 @@ export const makeCustomDurableKindWithContext = (
     cleanup: customCleanup = undefined,
   },
 ) => {
+  if (!customMake) {
+    throw new Error('makeCustomDurableKindWithContext - "make" function is required');
+  }
+  if (!customReanimate) {
+    throw new Error('makeCustomDurableKindWithContext - "reanimate" function is required');
+  }
   const { vrm, fakeStuff } = fakeVomKit;
   const store = zone.mapStore('controller');
   const instanceData = zone.mapStore('data');
@@ -93,6 +99,13 @@ export const makeCustomDurableKindWithZone = (
     cleanup: customCleanup = undefined,
   },
 ) => {
+  if (!customMake) {
+    throw new Error('makeCustomDurableKindWithZone - "make" function is required');
+  }
+  if (!customReanimate) {
+    throw new Error('makeCustomDurableKindWithZone - "reanimate" function is required');
+  }
+
   const { vrm, fakeStuff } = fakeVomKit;
   const store = zone.mapStore('controller');
   const dataZone = zone.subZone('instances');
@@ -126,6 +139,7 @@ export const makeCustomDurableKindWithZone = (
     const value = customMake(instanceZone, ...args);
     // register the slot with the value, so it can be stored
     fakeStuff.registerEntry(instanceSlot, value, false);
+    return value;
   };
 
   const reanimate = instanceSlot => {

packages/gems/src/extref-controller.js

@@ -79,7 +79,7 @@ export const installExternalReferenceController = (
     return exports.get(localSlot);
   };
 
-  const makeCaptpImportExportTables = () => {
+  const makeCapTPImportExportTables = () => {
     return {
       makeSlotForValue: registerExport,
       makeValueForSlot: (slot, iface) => {
@@ -108,13 +108,13 @@ export const installExternalReferenceController = (
     registerExport,
     unregisterExport,
     lookupExport,
-    makeCaptpImportExportTables,
+    makeCapTPImportExportTables,
   };
 };
 
 export const makeCaptpOptionsForExtRefController = controller => {
   const captpOptions = {
-    makeCaptpImportExportTables: controller.makeCaptpImportExportTables,
+    makeCapTPImportExportTables: controller.makeCapTPImportExportTables,
   };
   return captpOptions;
 };

packages/gems/src/vat-supervisor.js

@@ -211,6 +211,7 @@ export const makeVatSupervisor = (label, vatState) => {
     incubate,
     registerIncubation,
     registerClass,
+    defineClass,
     defineJsClass,
     fakeStore,
     fakeVomKit,