[8.19] Audit Logs Levels - Obs Ux Logs Team (#218413) (#220388)

# Backport

This will backport the following commits from `main` to `8.19`:
- [Audit Logs Levels - Obs Ux Logs Team
(#218413)](#218413)

<!--- Backport version: 9.6.6 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Abdul Wahab
Zahid","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-05-07T14:48:54Z","message":"Audit
Logs Levels - Obs Ux Logs Team (#218413)\n\nThe PR audits and fixes the
log levels for Dataset Quality plugin based on
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Logs Levels - Obs Ux Logs
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Logs Levels - Obs Ux Logs Team (#218413)\n\nThe PR audits and fixes the
log levels for Dataset Quality plugin based on
[guidelines](https://docs.elastic.dev/kibana-dev-docs/services/logging#log-level).","sha":"cf2091d5dca8aea47bec12ee14678382b36f9d1b"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/218413","number":218413,"mergeCommit":{"message":"Audit
Logs Levels - Obs Ux Logs Team (#218413)\n\nThe PR audits and fixes the
log levels for Dataset Quality plugin based on
[guidelines](https://docs.elastic.dev/kibana-dev-docs/services/logging#log-level).","sha":"cf2091d5dca8aea47bec12ee14678382b36f9d1b"}}]}]
BACKPORT-->

Co-authored-by: Abdul Wahab Zahid <[email protected]>

Author: kibanamachine

x-pack/platform/plugins/shared/dataset_quality/server/routes/register_routes.ts

@@ -79,15 +79,13 @@ export function registerRoutes({
           return response.ok({ body: data });
         } catch (error) {
           if (Boom.isBoom(error)) {
-            logger.error(error.output.payload.message);
+            logRouteError(logger, error);
             return response.customError({
               statusCode: error.output.statusCode,
               body: { message: error.output.payload.message },
             });
           }
 
-          logger.error(error);
-
           const opts = {
             statusCode: 500,
             body: {
@@ -100,9 +98,25 @@ export function registerRoutes({
             opts.body.message = 'Client closed request';
           }
 
+          logRouteError(logger, opts);
+
           return response.customError(opts);
         }
       }
     );
   });
 }
+
+function logRouteError(
+  logger: Logger,
+  error: { statusCode: number; body: { message: string } } | Boom.Boom
+) {
+  const errorStatusCode = 'statusCode' in error ? error.statusCode : error.output.statusCode;
+  const errorMessage = Boom.isBoom(error) ? error.output.payload.message : error.body.message;
+
+  if (errorStatusCode >= 500) {
+    logger.error(errorMessage);
+  } else {
+    logger.debug(errorMessage);
+  }
+}