Stuti Biyani

Fix golden tests after disabling proto randomness hack

2

## Description This PR addresses [issue #8162](https://github.com/vitessio/vitess/issues/8162) by removing the protobuf randomness hack and updating all golden tests to use proper structural comparisons instead of fragile byte-wise comparisons. ### Key...

Add metrics to track requests throttled in QueryThrottler

6

## Description This PR adds observability metrics to the QueryThrottler to track throttling behavior with granular visibility into request patterns and throttling decisions. ## Key Changes: Metrics Addition: Introduced two...