feat(07-04): DkvModule + registry seed + AppModule registration + i18n keys
- dkv.seed.ts: seedDkvModule with slug=dkv-fleet, category=fleet, isSystem=true
- dkv.module.ts: imports ModuleRegistryModule + CalendarModule (CalendarCryptoService)
provides all 7 DKV services + 2 providers + controller; OnModuleInit seeds registry
- app.module.ts: DkvModule added to imports (ScheduleModule + SettingsModule from Plans 01/03)
- de.json + en.json: complete dkvFleet namespace (50+ keys incl. status, col, form, errors)
- settings namespace extended with categoryGeneral, categorySmtp, smtp sub-object
schalli
2a3d1c1e85