BizCore v4.4.1 Migration Hotfix

Reason:
Some MariaDB installations did not apply the v4.4 multi-column ALTER TABLE
statement, leaving `total_wastage_qty` and related columns missing.

Fix:
- Checks production_orders columns one by one using information_schema.
- Adds only missing columns using separate ALTER TABLE statements.
- Re-adds v4.4 permissions safely with INSERT IGNORE.
- Production dashboard is made tolerant until the hotfix is applied.

Install:
1. Upload ZIP to existing BizCore project root.
2. Extract > Overwrite.
3. Open https://ceylongemx.online/update-4.4.1.php
4. Click Apply v4.4.1 Hotfix.
5. Confirm all five required columns show OK.
6. Ctrl + F5 and open Production Dashboard.

Do not rerun update-4.4.php.
