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docs(#655): history is server-side only; rewrite OPC-009 and stale driver-history references

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Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
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Joseph Doherty
2026-10-08 23:36:25 -04:00
parent f7f7d948cd
commit 67059e479f
21 changed files with 72 additions and 97 deletions
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docs/ReadWriteOperations.md
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@@ -95,7 +95,7 @@ with `BadUserAccessDenied`.
Four overrides — `HistoryReadRawModified`, `HistoryReadProcessed`, `HistoryReadAtTime`,
`HistoryReadEvents` — route to the **server-wide** `IHistorianDataSource` (the HistorianGateway-backed
reader, or `NullHistorianDataSource` when `ServerHistorian:Enabled=false`, which returns `GoodNoData`).
This is not a per-driver `IHistoryProvider` dispatch.
Drivers carry no history capability.
**No authorization check runs on any of the four.** Unlike `OnWriteValue`, the SDK does *not* hold the
node-manager `Lock` while invoking them, so these paths may await.