[FEATURE] Bucket level monitors expose the bucket params that get stored in alerts in the ctx variable

Is your feature request related to a problem?
Currently, users cannot create alert notifications that include the bucket params configured in the monitor query.

What solution would you like?
Adding the bucket params that would be stored in the alert to the ctx variable would allow users to define alert notification messages that better call out what condition was triggered. It will be important to to not store the entire bucket contents in the ctx, just the params that were in the pipeline aggregation defined for the trigger.

What alternatives have you considered?
A clear and concise description of any alternative solutions or features you've considered.

Do you have any additional context?
Add any other context or screenshots about the feature request here.

Start by tracing how bucket-level monitor queries build alerts and populate the ctx variable. Identify where pipeline aggregation parameters are available, then verify that only those parameters—not the entire bucket contents—are exposed in alert notification context. Done means notification messages can reference the stored bucket parameters.