- Add core outage schema and mesh replay contract types, with CentralCore/CentralDB support for queue and snapshot persistence
- Expose runtime replay hooks in engine health monitoring and peer exchange paths to drive outage recovery flows
- Expand protocol and architecture docs for shared mesh replay behavior and finalized contract expectations
- Add regression tests across core and engine for queue sequencing, snapshot contracts, and replay integration
Fusion-Task-Id: FN-3960
878fba40ab