RMS Digital Contact QR - Patch Carta Organisasi

NEW:
- organisation_chart.php
- Menu "Carta Organisasi" for ADMIN / SUPERADMIN and STAFF
- Dynamic chart from current Staff Master database
- Structure: Pengurusan > Sektor > Jabatan/Cawangan > Unit > Staf
- Search by name/title/sector/department/unit
- Expand All / Collapse All
- Staff card links to Digital Contact Card and Email
- Responsive mobile layout

HOW TO APPLY TO EXISTING INSTALLATION:
1. Backup your current rms_contact_qr folder.
2. Copy organisation_chart.php into C:\xampp\htdocs\rms_contact_qr\
3. Replace includes\layout.php with the patched file.
4. Replace assets\css\app.css with the patched file.
5. Open http://localhost/rms_contact_qr/organisation_chart.php

No database migration is required.
