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feat(FN-3455): document outage tolerance contracts in mesh protocol docs

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Documents outage tolerance contracts across three architecture docs, with the bulk of changes in `docs/shared-mesh-protocol.md` plus minor additions to the main architecture and multi-project guides.

Fusion-Task-Id: FN-3455
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Fusion
2026-05-10 18:19:29 -07:00
committed by gsxdsm
parent 1e76f247e4
commit 294f98c0e0
3 changed files with 36 additions and 15 deletions
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docs/multi-project.md
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@@ -34,6 +34,7 @@ Per-project task data remains in each repo’s `.fusion/fusion.db`.
Peer/mesh coordination spans core + engine, with startup ownership in CLI process entrypoints:
- Topology visibility is now cluster-wide from any connected node: dashboard mesh reads aggregate remote local snapshots and dedupe by `nodeId`, with fallback to last-known local mesh state when a peer is temporarily unreachable.
- Outage tolerance persistence is central and project-scoped: degraded mesh snapshots and queued write replay rows are stored with `projectId` keys so partitions in one project do not blur reconciliation state across other registered projects.
- `NodeDiscovery` and `NodeConnection` in `@fusion/core` handle discovery and remote node connectivity/auth primitives.
- `PeerExchangeService` in `@fusion/engine` coordinates node-to-node sync/exchange workflows.
- `MeshLeaseManager` in `@fusion/engine` is the single authority for stale lease detection and abandoned-work recovery across nodes.