Continue refactoring remaining middleware to be compatible with multiple clients

backend/src/utils/errors.ts

@@ -202,4 +202,13 @@ export const ServiceAccountKeyNotFoundError = (error?: Partial<RequestErrorConte
     stack: error?.stack
 })
 
+export const BotNotFoundError = (error?: Partial<RequestErrorContext>) => new RequestError({
+    logLevel: error?.logLevel ?? LogLevel.ERROR,
+    statusCode: error?.statusCode ?? 404,
+    type: error?.type ?? 'bot_not_found_error',
+    message: error?.message ?? 'The requested bot was not found',
+    context: error?.context,
+    stack: error?.stack
+})    
+
 //* ----->[MISC ERRORS]<-----