fix: correct test mock paths from "./db" to "../db"

Fixes incorrect vi.mock paths that were causing tests to fail.
The mock path should match the import path in the route files.

This addresses the authProvider test mock path issue on PR #2.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/__tests__/search.test.ts

@@ -23,7 +23,7 @@ const PET_ROW = {
 let clientResults: typeof ACTIVE_CLIENT[] = [];
 let petResults: typeof PET_ROW[] = [];
 
-vi.mock("./db", () => {
+vi.mock("../db", () => {
   // Proxy objects for table/column references — values don't matter for tests
   const tableProxy = (name: string) =>
     new Proxy(