first pass at query support for index db--filter for "type" added (no tests yet)

Author: habdelra

packages/runtime-common/index.ts

@@ -357,8 +357,24 @@ export function loaderFor(cardOrField: CardDef | FieldDef) {
   return loader;
 }
 
-export async function apiFor(cardOrField: CardDef | FieldDef) {
-  let loader = loaderFor(cardOrField);
+export async function apiFor(
+  cardOrFieldType: typeof CardDef | typeof FieldDef | typeof BaseDef,
+): Promise<typeof CardAPI>;
+export async function apiFor(
+  cardOrField: CardDef | FieldDef | BaseDef,
+): Promise<typeof CardAPI>;
+export async function apiFor(
+  cardOrFieldOrClass:
+    | CardDef
+    | FieldDef
+    | BaseDef
+    | typeof CardDef
+    | typeof FieldDef
+    | typeof BaseDef,
+) {
+  let loader =
+    Loader.getLoaderFor(cardOrFieldOrClass) ??
+    loaderFor(cardOrFieldOrClass as CardDef | FieldDef | BaseDef);
   let api = await loader.import<typeof CardAPI>(
     'https://cardstack.com/base/card-api',
   );