chore: add helix-api and workspace config to monorepo

helix-api/docs/app/lib/openapi.ts

@@ -0,0 +1,8 @@
+import path from 'node:path';
+import { createOpenAPI } from 'fumadocs-openapi/server';
+
+export const openapi = createOpenAPI({
+  input: () => ({
+    helix: path.resolve('./openapi/openapi.yaml'),
+  }),
+});