Associate a check with existing CALs

[VikaCep]

Goal

Enable users to associate a Synthetic Monitoring check with one or more CALs during create/edit.

This involves:

• Fetch available CAL names from SM API
• Display CAL inputs in the check form
• Support create/update flows

Open questions

• API contract for fetching CALs
• Proposed: GET /cals (polled periodically) which will return just the keys if they exist.
• Shape of CAL data in the check payload
  • Empty list vs pre-populated keys with empty values
• Validation strictness for MVP (required vs optional)
• UX considerations
• What do we show if no CALs are defined for the tenant?