ES|QL Query Prioritization and Resource Management

## Value Proposition

Administrators need to protect cluster stability from runaway queries that accidentally consume excessive resources. Currently, identifying and terminating such queries is reactive and manual.

## Expected Outcome

Administrative controls that allow setting maximum query runtime limits and resource budgets by user, role, or query type. Queries exceeding their limits are automatically terminated, and critical workloads can be assigned higher priority to ensure predictable performance.