Add dev server UI port

src/Temporalio/Bridge/OptionsExtensions.cs

@@ -393,6 +393,7 @@ public static unsafe Interop.DevServerOptions ToInteropOptions(
                 ip = scope.ByteArray(ip),
                 database_filename = scope.ByteArray(options.DevServerOptions.DatabaseFilename),
                 ui = (byte)(options.UI ? 1 : 0),
+                ui_port = (ushort)options.UIPort,
                 log_format = scope.ByteArray(options.DevServerOptions.LogFormat),
                 log_level = scope.ByteArray(options.DevServerOptions.LogLevel),
             };

src/Temporalio/Bridge/include/temporal-sdk-bridge.h

@@ -352,6 +352,7 @@ typedef struct DevServerOptions {
    */
   struct ByteArrayRef database_filename;
   bool ui;
+  uint16_t ui_port;
   struct ByteArrayRef log_format;
   struct ByteArrayRef log_level;
 } DevServerOptions;

src/Temporalio/Bridge/src/testing.rs

@@ -19,6 +19,7 @@ pub struct DevServerOptions {
     /// Empty means default behavior
     database_filename: ByteArrayRef,
     ui: bool,
+    ui_port: u16,
     log_format: ByteArrayRef,
     log_level: ByteArrayRef,
 }
@@ -208,6 +209,11 @@ impl TryFrom<&DevServerOptions> for ephemeral_server::TemporalDevServerConfig {
             .port(test_server_options.port())
             .db_filename(options.database_filename.to_option_string())
             .ui(options.ui)
+            .ui_port(if options.ui_port == 0 {
+                None
+            } else {
+                Some(options.ui_port)
+            })
             .log((
                 options.log_format.to_string(),
                 options.log_level.to_string(),

src/Temporalio/Testing/WorkflowEnvironmentStartLocalOptions.cs

@@ -21,6 +21,11 @@ public class WorkflowEnvironmentStartLocalOptions : Client.TemporalClientConnect
         /// </summary>
         public bool UI { get; set; }
 
+        /// <summary>
+        /// Gets or sets a value for the UI port to use if <see cref="UI"/> is true.
+        /// </summary>
+        public int UIPort { get; set; }
+
         /// <summary>
         /// Gets or sets search attributes registered on the dev server on start.
         /// </summary>