feat(logging): add runtime log levels and debug log export (#241)

Add a System setting for Off/Normal/Debug logging, apply readable local timestamps to backend logs, and enable exporting buffered runtime logs to a file when debug mode is active.

Co-authored-by: Maxim Isaev <im@friclub.ru>

src/locales/nl.ts

@@ -669,6 +669,14 @@ export const nlTranslation = {
     shortcutNativeFullscreen: 'Systeemvolledig scherm',
     shortcutOpenMiniPlayer: 'Mini-speler openen',
     tabSystem: 'Systeem',
+    loggingTitle: 'Logboek',
+    loggingModeDesc: 'Bepaalt de uitgebreidheid van backendlogs in de terminal.',
+    loggingModeOff: 'Uit',
+    loggingModeNormal: 'Normaal',
+    loggingModeDebug: 'Debug',
+    loggingExport: 'Logs exporteren',
+    loggingExportSuccess: 'Logs geëxporteerd ({{count}} regels).',
+    loggingExportError: 'Kon logs niet exporteren.',
     tabGeneral: 'Algemeen',
     ratingsSectionTitle: 'Beoordelingen',
     ratingsSkipStarTitle: 'Overslaan voor 1 ster',