Let Activator alerts run only during specific time windows (e.g. Mon to Fri, 9am to 6pm)

[_mabc360]

Today, when creating an Activator rule from a Power BI visual, we can set the evaluation frequency (for example, 1 evaluation per hour), but we cannot control when those evaluations happen during the day or week. Two related gaps:

1. No time window control. Alerts run 24/7 at the chosen frequency. There is no way to scope evaluations to specific days or hours of the day.
2. No start time control. The evaluation cycle appears to anchor to the Activator creation time, so the rhythm of the schedule depends on when the rule was saved rather than a business-meaningful anchor the user picks.

Proposal

Extend the frequency configuration to also support:

• Time windows: pick the days of the week and the hour range during which the alert should evaluate (for example, Mon to Fri, 09:00 to 18:00).
• Custom start time: let users set an explicit start time for the evaluation cycle instead of defaulting to the creation timestamp.

Example scenarios

• A retail operations team only needs inventory alerts during store hours.
• A support team wants SLA breach alerts only during staffed shifts, not overnight.
• A finance team wants market-hours-only evaluations for trading dashboards.

Why it matters

• Cuts noise from off-hours alerts that no one is around to act on.
• Reduces unnecessary evaluation volume and the capacity it consumes.
• Aligns Activator's behavior with how teams actually operate.