fix(centralui): dispose ConfigurationAuditLog browser-time module (review 2026-10-21 07/M-1)

src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Audit/ConfigurationAuditLog.razor

@@ -4,6 +4,7 @@
 @using ZB.MOM.WW.ScadaBridge.Commons.Entities.Audit
 @using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Repositories
 @attribute [Authorize(Policy = AuthorizationPolicies.OperationalAudit)]
+@implements IAsyncDisposable
 @inject ICentralUiRepository CentralUiRepository
 @inject NavigationManager Nav
 @inject IJSRuntime JS
@@ -286,6 +287,19 @@
     private const string BrowserTimeModulePath = "./_content/ZB.MOM.WW.ScadaBridge.CentralUI/js/browser-time.js";
     private IJSObjectReference? _browserTimeModule;
 
+    /// <summary>
+    /// Releases the dynamically imported browser-time module so its JS-side object reference
+    /// is not retained for the life of the circuit. A disconnected circuit has already
+    /// dropped it, so that failure is expected and swallowed.
+    /// </summary>
+    public async ValueTask DisposeAsync()
+    {
+        if (_browserTimeModule is null) return;
+        try { await _browserTimeModule.DisposeAsync(); }
+        catch (JSDisconnectedException) { /* circuit already gone */ }
+        _browserTimeModule = null;
+    }
+
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (!firstRender) return;