feat(build-docs): generate script API

apps/build-docs/src/script-api.ts

@@ -0,0 +1,9 @@
+import { execSync } from "child_process";
+import BuildContext from "./context";
+
+export default function buildScriptApi({ }: BuildContext) {
+    execSync(`pnpm typedoc`, {
+        stdio: "inherit"
+        // * Output dir is set in typedoc.json.
+    });
+}