Return relevant error code in logger interceptor

src/routes/common/interceptors/route-logger.interceptor.ts

@@ -10,10 +10,9 @@ import { ILoggingService, LoggingService } from '@/logging/logging.interface';
 import { Inject } from '@nestjs/common/decorators';
 import { Observable, tap } from 'rxjs';
 import { formatRouteLogMessage } from '@/logging/utils';
-import { DataSourceError } from '@/domain/errors/data-source.error';
 import { Request, Response } from 'express';
 import isNumber from 'lodash/isNumber';
-import { ZodErrorWithCode } from '@/validation/pipes/validation.pipe';
+import { ZodError } from 'zod';
 
 /**
  * The {@link RouteLoggerInterceptor} is an interceptor that logs the requests
@@ -64,17 +63,13 @@ export class RouteLoggerInterceptor implements NestInterceptor {
    * @private
    */
   private onError(request: Request, error: Error, startTimeMs: number): void {
-    let statusCode;
-    if (error instanceof HttpException) {
-      statusCode = error.getStatus();
-    } else if (error instanceof DataSourceError) {
-      statusCode = error.code ?? HttpStatus.INTERNAL_SERVER_ERROR;
-    } else if (error instanceof ZodErrorWithCode) {
-      statusCode = error.code;
-    } else if ('code' in error && isNumber(error.code)) {
+    let statusCode: number = HttpStatus.INTERNAL_SERVER_ERROR;
+    if ('code' in error && isNumber(error.code)) {
       statusCode = error.code;
-    } else {
-      statusCode = HttpStatus.INTERNAL_SERVER_ERROR;
+    } else if (error instanceof HttpException) {
+      statusCode = error.getStatus();
+    } else if (error instanceof ZodError) {
+      statusCode = HttpStatus.UNPROCESSABLE_ENTITY;
     }
 
     const message = formatRouteLogMessage(