West Coast Pest /pest login debug fix

What this fixes:
- resolves SQLSTATE[HY093] Invalid parameter number in /pest/api/login.php
- keeps the debug output active so any next failure still shows file, line, and checkpoint

Overwrite:
- /public_html/pest/api/login.php

Then:
1. Hard refresh https://uent.co.za/pest/attendance/
2. Try login again
3. Send the on-screen message if anything still fails
