perf(worker): launcher-configurable event queue capacity

src/ZB.MOM.WW.MxGateway.Worker/MxAccess/MxAccessStaSession.cs

@@ -63,12 +63,15 @@ public sealed class MxAccessStaSession : IWorkerRuntimeSession
 
     /// <summary>
     /// Initializes a new instance of <see cref="MxAccessStaSession"/> with default dependencies.
+    /// The outbound event queue is sized from the launcher-provided
+    /// <c>MXGATEWAY_EVENT_QUEUE_CAPACITY</c> (see <see cref="MxAccessEventQueue.ResolveCapacity"/>);
+    /// callers that pass their own queue keep full control of its capacity.
     /// </summary>
     public MxAccessStaSession()
         : this(
             new StaRuntime(),
             new MxAccessComObjectFactory(),
-            new MxAccessEventQueue())
+            new MxAccessEventQueue(MxAccessEventQueue.ResolveCapacity()))
     {
     }
 
@@ -84,7 +87,7 @@ public sealed class MxAccessStaSession : IWorkerRuntimeSession
         : this(
             new StaRuntime(),
             new MxAccessComObjectFactory(),
-            new MxAccessEventQueue(),
+            new MxAccessEventQueue(MxAccessEventQueue.ResolveCapacity()),
             alarmCommandHandlerFactory)
     {
     }
@@ -99,7 +102,7 @@ public sealed class MxAccessStaSession : IWorkerRuntimeSession
         StaRuntime staRuntime,
         IMxAccessComObjectFactory factory,
         IMxAccessEventSink eventSink)
-        : this(staRuntime, factory, eventSink, new MxAccessEventQueue())
+        : this(staRuntime, factory, eventSink, new MxAccessEventQueue(MxAccessEventQueue.ResolveCapacity()))
     {
     }