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docs(vtags): document runtime Historize honoring + infra-gated durable sink (Phase 1 H5)

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Joseph Doherty
2026-06-15 10:43:29 -04:00
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docs/plans/2026-06-15-stillpending-backlog-design.md
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@@ -113,6 +113,7 @@ Forward-looking reservations or out-of-repo; left out unless explicitly pulled b
- Monaco InlayHints — parameter-name hints; likely intended-permanent stub.
- The full **HistoryUpdate service** — infra-gated (no backend insert/replace/delete RPC).
- Galaxy `ExecuteWrite` fire-and-forget write-outcome — lives in the **mxaccessgw sibling repo**, not here.
- **Durable AVEVA virtual-tag history sink** (the concrete `IHistoryWriter` behind H5) — infra-gated: the Wonderware historian sidecar exposes only HistoryRead + alarm-event writes, no live-data `WriteDataValues` RPC. H5 (Phase 1) wired the injectable seam with a `NullHistoryWriter` default; the durable sink needs a sidecar RPC first (same class of constraint as the HistoryUpdate service).
## Verification per phase