Core module: Vert.x DI wiring, common types and exceptions

ConfigRetriever integration with Dagger typed config binding for Vert.x Framework

Context-propagation substrate runtime: ContextHolder impl, registries, propagator, lifecycle helpers

Security API/SPI: identity types, authentication records, authorization contracts, and the sealed verification-source family

Extension API for the REST framework: interfaces, annotations, lifecycle hooks, middleware

Event bus service dispatch with contract-first interfaces and resilience policies

Canonical resilience annotations, metadata, backoff strategies, and retry policies

Vert.x-aware MDC, structured logging, and audit trail support

JSON mapper profile runtime: named ObjectMapper profiles, built-in system profile, the process JSON codec install step, Dagger wiring, and startup validation

Dagger-based verticle deployer with multi-instance and priority support

Database core: exception hierarchy, pool config, failure mapper, repository interface, row utilities