fix(s7): numeric TSAP loads in form, shared TSAP conflict error, Test Connect read detects PUT/GET disabled, pin Int32 ms rounding (#632 #638)

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Drivers/Forms/S7DriverForm.razor

@@ -56,6 +56,10 @@
                 <div class="form-text">Optional hex override, e.g. <code>03.01</code>. Not combinable with Connection type.</div>
             </div>
         </div>
+        @if (_form.TsapConflictError() is { } tsapError)
+        {
+            <div class="text-danger small" role="alert">@tsapError</div>
+        }
     </div>
 </section>
 
@@ -183,6 +187,12 @@
         public string? ResilienceConfig { get; set; }
         public byte[] RowVersion { get; set; } = [];
 
+        /// <summary>The same error the driver factory raises for Remote TSAP + Connection type together; null when fine.</summary>
+        public string? TsapConflictError() =>
+            !string.IsNullOrWhiteSpace(RemoteTsap) && !string.IsNullOrWhiteSpace(ConnectionTypeText)
+                ? "S7 driver config " + S7DriverOptions.TsapConflictDetail
+                : null;
+
         public static FormModel FromOptions(S7DriverOptions o) => new()
         {
             Host = o.Host,