Integration of SW360 and LicenseDB

SW360 currently imports license and obligation data through five disconnected paths with no coordination between them, meaning multiple instances can hold different obligation text for the same license with no way to detect the gap. This project makes LicenseDB the single authoritative source by implementing scheduled REST based synchronization. It covers paginated license and obligation sync, incremental daily updates via the audit log, field-level mapping that preserves SW360-specific compliance fields, read-only gating of legacy import paths, and CouchDB-first lookup for CLI attachment processing. Deliverables include JWT authentication, automated daily scheduling via ScheduleHandler, admin REST endpoints for sync control and health monitoring, encrypted credentials, circuit breaker and rate limiting, a migration guide, and test coverage.