CHUMANA V3.4.2.1 — PROGRESS BUTTON HOTFIX

Fixes the provider progress workflow after “On My Way”.

Changes:
- Adds a dedicated, transaction-safe job-progress.php endpoint.
- Wires I Have Arrived, Start Work, and Mark Work Completed to that endpoint.
- Re-checks the live database status before each update.
- Prevents skipped or duplicate stages.
- Shows a clear success or error message after every action.
- Adds “Complete each stage in order” guidance.

No database upgrade is required if V3.4.2 is already installed.
