fix: resolve pre-existing TypeScript errors for CI compliance (#9)

Merge PR #9: fix pre-existing TypeScript errors for CI compliance

All Lint & Typecheck and Test checks pass. Ready to merge.

cc @cpfarhood

apps/api/src/services/waitlistNotify.ts

@@ -1,4 +1,4 @@
-import { and, eq, getDb, waitlistEntries, clients, pets, services } from "../db";
+import { and, eq, getDb, waitlistEntries, clients, pets, services } from "../db/index.js";
 import { buildWaitlistNotificationEmail, sendEmail } from "./email.js";
 
 export async function notifyWaitlistForAppointment(