Logging PT sessions and trainer earnings

• Personal Training → Sessions: log a session for a member's package. Trainers can log their own from the trainer panel.
• Each session reduces sessions remaining and records the trainer's commission for it.
• Members get WhatsApp updates when a session is used, when they're running low, and when the package is used up or about to expire (if those templates are set up).

PT reports

PT Reports shows packages sold, revenue, and sessions used per trainer and per plan. Revenue is what each package was actually billed — its share of the invoice after any discount — and cancelled packages aren't counted.