Increase upcoming events window from 72 hours to 5 days

Extended the shopfloor dashboard upcoming events window to show more
advance notice of scheduled changes and incidents.

Changes:
- api_shopfloor.asp: Changed INTERVAL 72 HOUR to INTERVAL 5 DAY
- Dashboard display: "Next 72 Hours" → "Next 5 Days"
- No events message: Updated to reflect 5-day window

Benefits:
- Better visibility for weekly planned maintenance
- More advance notice for upcoming changes
- Aligns with typical weekly planning cycles

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

api_shopfloor.asp

@@ -25,7 +25,7 @@ strSQL = "SELECT n.notificationid, n.notification, n.starttime, n.endtime, " & _
          "  ELSE 0 " & _
          "END as is_resolved, " & _
          "CASE " & _
-         "  WHEN n.starttime > NOW() AND n.starttime <= DATE_ADD(NOW(), INTERVAL 72 HOUR) THEN 1 " & _
+         "  WHEN n.starttime > NOW() AND n.starttime <= DATE_ADD(NOW(), INTERVAL 5 DAY) THEN 1 " & _
          "  ELSE 0 " & _
          "END as is_upcoming, " & _
          "TIMESTAMPDIFF(MINUTE, n.endtime, NOW()) as minutes_since_end " & _