fix: etcd bucket delete missing prefix and metrics test range (#3331)

Signed-off-by: Keiven Chang <keivenchang@users.noreply.github.com>

lib/runtime/src/metrics.rs

@@ -1593,8 +1593,8 @@ mod test_metricsregistry_nats {
             (
                 build_component_metric_name(nats_service::REQUESTS_TOTAL),
                 0.0,
-                0.0,
-            ), // No work handler requests
+                10.0,
+            ), // NATS service stats requests (may differ from work handler count)
             (
                 build_component_metric_name(nats_service::PROCESSING_MS_TOTAL),
                 0.0,

lib/runtime/src/storage/key_value_store/etcd.rs

@@ -70,7 +70,7 @@ impl KeyValueBucket for EtcdBucket {
     }
 
     async fn get(&self, key: &Key) -> Result<Option<bytes::Bytes>, StorageError> {
-        let k = format!("{}/{key}", self.bucket_name);
+        let k = make_key(&self.bucket_name, key);
         tracing::trace!("etcd get: {k}");
 
         let mut kvs = self
@@ -86,9 +86,11 @@ impl KeyValueBucket for EtcdBucket {
     }
 
     async fn delete(&self, key: &Key) -> Result<(), StorageError> {
+        let k = make_key(&self.bucket_name, key);
+        tracing::trace!("etcd delete: {k}");
         let _ = self
             .client
-            .kv_delete(key.0.clone(), None)
+            .kv_delete(k, None)
             .await
             .map_err(|e| StorageError::EtcdError(e.to_string()))?;
         Ok(())