- Add 1-day reminder (VALARM) to all sent invites - Fix datetime.utcnow() deprecation → datetime.now(timezone.utc) - Rename "message ID" → "envelope ID" in SKILL.md for consistency - Remove unused _himalaya() and _himalaya_with_account() helpers
- Add 1-day reminder (VALARM) to all sent invites - Fix datetime.utcnow() deprecation → datetime.now(timezone.utc) - Rename "message ID" → "envelope ID" in SKILL.md for consistency - Remove unused _himalaya() and _himalaya_with_account() helpers