refactor(core): Switch plain errors in cli to ApplicationError (#7857)

Ensure all errors in `cli` are `ApplicationError` or children of it and
contain no variables in the message, to continue normalizing all the
errors we report to Sentry

Follow-up to: https://github.com/n8n-io/n8n/pull/7839

packages/cli/src/config/index.ts

@@ -1,7 +1,7 @@
 import convict from 'convict';
 import dotenv from 'dotenv';
 import { readFileSync } from 'fs';
-import { setGlobalState } from 'n8n-workflow';
+import { ApplicationError, setGlobalState } from 'n8n-workflow';
 import { inTest, inE2ETests } from '@/constants';
 
 if (inE2ETests) {
@@ -53,7 +53,7 @@ if (!inE2ETests && !inTest) {
 				} catch (error) {
 					// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
 					if (error.code === 'ENOENT') {
-						throw new Error(`The file "${fileName}" could not be found.`);
+						throw new ApplicationError('File not found', { extra: { fileName } });
 					}
 					throw error;
 				}

packages/cli/src/config/utils.ts

@@ -1,8 +1,9 @@
 import { NotStringArrayError } from '@/errors/not-string-array.error';
 import type { SchemaObj } from 'convict';
+import { ApplicationError } from 'n8n-workflow';
 
 export const ensureStringArray = (values: string[], { env }: SchemaObj<string>) => {
-	if (!env) throw new Error(`Missing env: ${env}`);
+	if (!env) throw new ApplicationError('Missing env', { extra: { env } });
 
 	if (!Array.isArray(values)) throw new NotStringArrayError(env);