Switch devlog convention from daily to session-based (vormittag/abend).
Add devlog for Manalink prod-readiness work and deployment.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Storage backend doesn't use setGlobalPrefix, so controller
needs full path @Controller('api/v1/admin')
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>