feat(drivers): expose ProbeTimeoutSeconds on every driver Options class

Adds a uniform [Range(1, 60)] ProbeTimeoutSeconds property to all 9
driver Options classes (Modbus 5s, AbCip 5s, AbLegacy 5s, S7 5s,
TwinCAT 10s, FOCAS 10s, OpcUaClient 15s, Galaxy 30s, Historian 15s).
Powers the AdminUI Test Connect button (Phase 7 of the plan).

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Contracts/GalaxyDriverOptions.cs

@@ -1,3 +1,5 @@
+using System.ComponentModel.DataAnnotations;
+
 namespace ZB.MOM.WW.OtOpcUa.Driver.Galaxy.Config;
 
 /// <summary>
@@ -15,7 +17,16 @@ public sealed record GalaxyDriverOptions(
     GalaxyGatewayOptions Gateway,
     GalaxyMxAccessOptions MxAccess,
     GalaxyRepositoryOptions Repository,
-    GalaxyReconnectOptions Reconnect);
+    GalaxyReconnectOptions Reconnect)
+{
+    /// <summary>
+    ///     Timeout for the AdminUI Test Connect probe, in seconds. The AdminUI clamps to a
+    ///     60s server-side maximum; this default is what the form pre-fills for new instances.
+    /// </summary>
+    [Display(Name = "Probe timeout (seconds)", Description = "Connection test timeout. Default 30s.", GroupName = "Diagnostics")]
+    [Range(1, 60)]
+    public int ProbeTimeoutSeconds { get; init; } = 30;
+}
 
 /// <summary>
 ///     Connection details for the MxAccess gateway. <see cref="ApiKeySecretRef"/> is