scheduler notification runbook

This is a safe, instruction-only runbook: it contains guidance for choosing reminder payloads, session targets, and writing reminder copy and does not ask for credentials or install code. Before using it in production, ensure your scheduling system's permission model is correct — verifying whether jobs fired or troubleshooting delivery will require access to your scheduler/platform logs or APIs, which are outside this document. Also avoid encoding secrets or sensitive data into reminder text (reminders are meant to be readable later). If you wire this guidance into an automated workflow, review any scheduler integration code separately to confirm it only has the minimal permissions needed to create and inspect jobs.