refactor(errors): improve error logging logic in withErrorHandling function

lib/api/errors.js

@@ -1,8 +1,3 @@
-// ---------------------------------------------------------------------------
-// Ordner: lib/api
-// Datei: errors.js
-// Relativer Pfad: lib/api/errors.js
-// ---------------------------------------------------------------------------
 /**
  * Central API response helpers for consistent JSON output and standardized errors.
  *
@@ -176,23 +171,23 @@ export function toApiErrorResponse(err) {
  * @returns {Function}
  */
 export function withErrorHandling(handler, { logPrefix = "[api]" } = {}) {
+	const shouldLog = process.env.NODE_ENV !== "test";
+
 	return async (...args) => {
 		try {
 			return await handler(...args);
 		} catch (err) {
-			// Log unexpected errors always.
-			// For ApiErrors, only log server-side failures (5xx) by default
-			// to avoid noisy logs for client mistakes (4xx).
 			if (err instanceof ApiError) {
-				if (err.status >= 500) {
+				if (shouldLog && err.status >= 500) {
 					console.error(`${logPrefix} ${err.code}:`, err.cause || err);
 				}
 				return toApiErrorResponse(err);
 			}
 
-			console.error(`${logPrefix} Unhandled error:`, err);
+			if (shouldLog) {
+				console.error(`${logPrefix} Unhandled error:`, err);
+			}
 			return toApiErrorResponse(err);
 		}
 	};
 }
-// ---------------------------------------------------------------------------