Kristjan ESPERANTO 9ad5618843 [check_config] refactor: improve error handling (#3927) ...

- Combine file existence and permission checks with better error
messages
- Replace thrown exceptions with clean error output (no stack traces)
- Support custom module positions by changing strict validation to
warnings
- Add missing process.exit(1) after validation errors

Users now see clear, actionable error messages without stack traces, and
custom region configurations work correctly.

## example before

```bash
$ npm run start

> magicmirror@2.34.0-develop start
> node --run start:x11

[2025-10-22 17:56:06.303] [LOG]   Starting MagicMirror: v2.34.0-develop 
[2025-10-22 17:56:06.304] [LOG]   Loading config ... 
[2025-10-22 17:56:06.304] [LOG]   config template file not exists, no envsubst 
[2025-10-22 17:56:06.356] [ERROR] File not found: /home/kristjan/MagicMirror/config/config.js
No config file present! 
[2025-10-22 17:56:06.356] [ERROR] [checkconfig] Error: Error: ENOENT: no such file or directory, access '/home/kristjan/MagicMirror/config/config.js'
No permission to access config file!
    at checkConfigFile (/home/kristjan/MagicMirror/js/check_config.js:43:9)
    at Object.<anonymous> (/home/kristjan/MagicMirror/js/check_config.js:138:2)
    at Module._compile (node:internal/modules/cjs/loader:1714:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1848:10)
    at Module.load (node:internal/modules/cjs/loader:1448:32)
    at Module._load (node:internal/modules/cjs/loader:1270:12)
    at c._load (node:electron/js2c/node_init:2:17993)
    at TracingChannel.traceSync (node:diagnostics_channel:322:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
    at Module.require (node:internal/modules/cjs/loader:1470:12)
    at require (node:internal/modules/helpers:147:16)
    at loadConfig (/home/kristjan/MagicMirror/js/app.js:126:3)
    at App.start (/home/kristjan/MagicMirror/js/app.js:291:18)
    at Object.<anonymous> (/home/kristjan/MagicMirror/js/electron.js:228:7)
    at Module._compile (node:internal/modules/cjs/loader:1714:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1848:10) 
```

## example after

```bash
$ npm run start

> magicmirror@2.34.0-develop start
> node --run start:x11

[2025-10-22 21:33:27.930] [LOG]   Starting MagicMirror: v2.34.0-develop 
[2025-10-22 21:33:27.931] [LOG]   Loading config ... 
[2025-10-22 21:33:27.931] [LOG]   config template file not exists, no envsubst 
[2025-10-22 21:33:27.985] [ERROR] [check_config] File not found: /home/kristjan/MagicMirror/config/config.js 
```

2025-10-23 22:48:16 +02:00

..

alias-resolver.js

refactor: replace module-alias dependency with internal alias resolver (#3893)

2025-09-30 20:12:58 +02:00

animateCSS.js

logger: add calling filename as prefix on server side (#3926)

2025-10-22 22:50:31 +02:00

app.js

refactor: replace module-alias dependency with internal alias resolver (#3893)

2025-09-30 20:12:58 +02:00

check_config.js

[check_config] refactor: improve error handling (#3927)

2025-10-23 22:48:16 +02:00

class.js

Bump stylistic-eslint (#3520)

2024-08-12 22:52:43 +02:00

defaults.js

Use "node --run" instead of "npm run" (#3764)

2025-05-06 20:33:42 +02:00

deprecated.js

add support for digital clock time color (#3737)

2025-03-16 15:33:27 +01:00

electron.js

logger: add calling filename as prefix on server side (#3926)

2025-10-22 22:50:31 +02:00

ip_access_control.js

refactor: replace express-ipfilter with lightweight custom middleware (#3917)

2025-10-18 19:56:55 +02:00

loader.js

simplify install and maintaining dependencies (#3795)

2025-06-01 17:03:11 +02:00

logger.js

logger: add calling filename as prefix on server side (#3926)

2025-10-22 22:50:31 +02:00

main.js

[logger] Add prefixes to most Log messages (#3923)

2025-10-21 20:32:48 +02:00

module_functions.js

update jsdoc and other deps (#3896)

2025-09-23 06:27:29 +02:00

module.js

[logger] Add prefixes to most Log messages (#3923)

2025-10-21 20:32:48 +02:00

node_helper.js

logger: add calling filename as prefix on server side (#3926)

2025-10-22 22:50:31 +02:00

server_functions.js

Make User-Agent configurable (#3255)

2025-08-27 13:50:37 +02:00

server.js

refactor: replace express-ipfilter with lightweight custom middleware (#3917)

2025-10-18 19:56:55 +02:00

socketclient.js

fix for #3380, socket.io timeout closure (#3862)

2025-08-28 18:02:21 +02:00

translator.js

[logger] Add prefixes to most Log messages (#3923)

2025-10-21 20:32:48 +02:00

utils.js

refactor: replace module-alias dependency with internal alias resolver (#3893)

2025-09-30 20:12:58 +02:00

vendor.js

simplify install and maintaining dependencies (#3795)

2025-06-01 17:03:11 +02:00