Phase 0 — mechanical rename ZB.MOM.WW.LmxOpcUa.* → ZB.MOM.WW.OtOpcUa.*

Renames all 11 projects (5 src + 6 tests), the .slnx solution file, all source-file namespaces, all axaml namespace references, and all v1 documentation references in CLAUDE.md and docs/*.md (excluding docs/v2/ which is already in OtOpcUa form). Also updates the TopShelf service registration name from "LmxOpcUa" to "OtOpcUa" per Phase 0 Task 0.6.

Preserves runtime identifiers per Phase 0 Out-of-Scope rules to avoid breaking v1/v2 client trust during coexistence: OPC UA `ApplicationUri` defaults (`urn:{GalaxyName}:LmxOpcUa`), server `EndpointPath` (`/LmxOpcUa`), `ServerName` default (feeds cert subject CN), `MxAccessConfiguration.ClientName` default (defensive — stays "LmxOpcUa" for MxAccess audit-trail consistency), client OPC UA identifiers (`ApplicationName = "LmxOpcUaClient"`, `ApplicationUri = "urn:localhost:LmxOpcUaClient"`, cert directory `%LocalAppData%\LmxOpcUaClient\pki\`), and the `LmxOpcUaServer` class name (class rename out of Phase 0 scope per Task 0.5 sed pattern; happens in Phase 1 alongside `LmxNodeManager → GenericDriverNodeManager` Core extraction). 23 LmxOpcUa references retained, all enumerated and justified in `docs/v2/implementation/exit-gate-phase-0.md`.

Build clean: 0 errors, 30 warnings (lower than baseline 167). Tests at strict improvement over baseline: 821 passing / 1 failing vs baseline 820 / 2 (one flaky pre-existing failure passed this run; the other still fails — both pre-existing and unrelated to the rename). `Client.UI.Tests`, `Historian.Aveva.Tests`, `Client.Shared.Tests`, `IntegrationTests` all match baseline exactly. Exit gate compliance results recorded in `docs/v2/implementation/exit-gate-phase-0.md` with all 7 checks PASS or DEFERRED-to-PR-review (#7 service install verification needs Windows service permissions on the reviewer's box).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/ZB.MOM.WW.OtOpcUa.Host/Configuration/HistorianConfiguration.cs

@@ -0,0 +1,76 @@
+using System.Collections.Generic;
+
+namespace ZB.MOM.WW.OtOpcUa.Host.Configuration
+{
+    /// <summary>
+    ///     Wonderware Historian SDK configuration for OPC UA historical data access.
+    /// </summary>
+    public class HistorianConfiguration
+    {
+        /// <summary>
+        ///     Gets or sets a value indicating whether OPC UA historical data access is enabled.
+        /// </summary>
+        public bool Enabled { get; set; } = false;
+
+        /// <summary>
+        ///     Gets or sets the single Historian server hostname used when <see cref="ServerNames"/>
+        ///     is empty. Preserved for backward compatibility with pre-cluster deployments.
+        /// </summary>
+        public string ServerName { get; set; } = "localhost";
+
+        /// <summary>
+        ///     Gets or sets the ordered list of Historian cluster nodes. When non-empty, this list
+        ///     supersedes <see cref="ServerName"/>: the data source attempts each node in order on
+        ///     connect, falling through to the next on failure. A failed node is placed in cooldown
+        ///     for <see cref="FailureCooldownSeconds"/> before being re-eligible.
+        /// </summary>
+        public List<string> ServerNames { get; set; } = new();
+
+        /// <summary>
+        ///     Gets or sets the cooldown window, in seconds, that a historian node is skipped after
+        ///     a connection failure. A value of zero retries the node on every request. Default 60s.
+        /// </summary>
+        public int FailureCooldownSeconds { get; set; } = 60;
+
+        /// <summary>
+        ///     Gets or sets a value indicating whether Windows Integrated Security is used.
+        ///     When false, <see cref="UserName"/> and <see cref="Password"/> are used instead.
+        /// </summary>
+        public bool IntegratedSecurity { get; set; } = true;
+
+        /// <summary>
+        ///     Gets or sets the username for Historian authentication when <see cref="IntegratedSecurity"/> is false.
+        /// </summary>
+        public string? UserName { get; set; }
+
+        /// <summary>
+        ///     Gets or sets the password for Historian authentication when <see cref="IntegratedSecurity"/> is false.
+        /// </summary>
+        public string? Password { get; set; }
+
+        /// <summary>
+        ///     Gets or sets the Historian server TCP port.
+        /// </summary>
+        public int Port { get; set; } = 32568;
+
+        /// <summary>
+        ///     Gets or sets the packet timeout in seconds for Historian SDK operations.
+        /// </summary>
+        public int CommandTimeoutSeconds { get; set; } = 30;
+
+        /// <summary>
+        ///     Gets or sets the maximum number of values returned per HistoryRead request.
+        /// </summary>
+        public int MaxValuesPerRead { get; set; } = 10000;
+
+        /// <summary>
+        ///     Gets or sets an outer safety timeout, in seconds, applied to sync-over-async Historian
+        ///     operations invoked from the OPC UA stack thread (HistoryReadRaw, HistoryReadProcessed,
+        ///     HistoryReadAtTime, HistoryReadEvents). This is a backstop for the case where a
+        ///     historian query hangs outside <see cref="CommandTimeoutSeconds"/> — e.g., a slow SDK
+        ///     reconnect or mid-failover cluster node. Must be comfortably larger than
+        ///     <see cref="CommandTimeoutSeconds"/> so normal operation is never affected. Default 60s.
+        /// </summary>
+        public int RequestTimeoutSeconds { get; set; } = 60;
+    }
+}