fix(r2-06): warning parity — malformed-endpoint warning in ServerHistorianOptions.Validate() (06/S-11)

src/Server/ZB.MOM.WW.OtOpcUa.Runtime/Historian/ServerHistorianOptions.cs

@@ -69,7 +69,16 @@ public sealed class ServerHistorianOptions
     public int MaxTieClusterOverfetch { get; init; } = 65536;
 
     /// <summary>Returns operator-facing misconfiguration warnings for an <c>Enabled</c> historian
-    /// (empty when disabled or correctly configured). Pure — the registration logs each entry.</summary>
+    /// (empty when disabled or correctly configured). Pure — the registration logs each entry.
+    /// <para>
+    ///     These are <b>warnings only</b>. The Host layers a fail-fast startup validator
+    ///     (<c>ServerHistorianOptionsValidator</c>, wired via <c>AddValidatedOptions</c>) on top of this
+    ///     for the <b>provably-crashing</b> subset — an empty/malformed <c>Endpoint</c> that is consumed
+    ///     by an enabled historian or an enabled <c>AlarmHistorian</c> — so that config fails host start
+    ///     with a named error instead of a raw <c>UriFormatException</c> crash-loop (archreview 06/S-11).
+    ///     The empty-<c>ApiKey</c> / non-positive-<c>MaxTieClusterOverfetch</c> entries stay warnings
+    ///     because they degrade rather than crash.
+    /// </para></summary>
     /// <returns>Zero or more human-readable warning messages (never carrying secret values).</returns>
     public IReadOnlyList<string> Validate()
     {
@@ -77,6 +86,13 @@ public sealed class ServerHistorianOptions
         if (!Enabled) return warnings;
         if (string.IsNullOrWhiteSpace(Endpoint))
             warnings.Add("ServerHistorian:Endpoint is empty while the historian is enabled — the read client has no gateway address to dial.");
+        // archreview 06/S-11 warning parity: a non-empty but unparseable / non-absolute-http(s) Endpoint
+        // is just as fatal (it throws in the gateway client factory). Warn on it here so the Runtime-side
+        // registration logs describe malformed endpoints too, consistent with the Host's fail-fast
+        // ServerHistorianOptionsValidator (which turns this same condition into a startup failure).
+        else if (!Uri.TryCreate(Endpoint, UriKind.Absolute, out var uri)
+                 || (uri.Scheme != Uri.UriSchemeHttp && uri.Scheme != Uri.UriSchemeHttps))
+            warnings.Add($"ServerHistorian:Endpoint ('{Endpoint}') is not an absolute http(s) URI while the historian is enabled — the read client cannot dial it (e.g. https://host:5222).");
         if (string.IsNullOrWhiteSpace(ApiKey))
             warnings.Add("ServerHistorian:ApiKey is empty while the historian is enabled — the gateway gRPC surface will reject unauthenticated calls.");
         // MaxTieClusterOverfetch is intentionally checked AFTER the Enabled early-return above: