fix(centralui): Topology inline area rename commits the typed name on Enter (Gitea #38)

The rename input bound _renameBuffer with the default onchange trigger. A
browser fires change only after the Enter keydown (or on blur, which cancels
by design), so CommitRename always saw the original name and silently
no-oped: a UI rename never persisted. Present since the page was written
(pre-dates 513fa1aa); the Playwright test masked it by dispatching a
synthetic change event before Enter. Bind on oninput instead.

Tests: bUnit InlineRename_TypeThenEnter_PersistsNewName (fails on the old
binding); the Playwright rename test now types + Enter like an operator.
Also fix the Playwright OpenStableTopologyAsync race: it counted 'Load
instances' loaders immediately after clicking Expand all, before the
circuit re-render landed, and returned an unexpanded tree; it now waits
for no collapsed branch first.

src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Deployment/Topology.razor

@@ -618,6 +618,7 @@
                            aria-label="@($"Rename {node.Label}")"
                            @ref="_renameInput"
                            @bind="_renameBuffer"
+                           @bind:event="oninput"
                            @onkeydown="(e) => OnRenameKeyDown(e, node)"
                            @onblur="() => CancelRename()" />
                     @if (!string.IsNullOrEmpty(_renameError))
@@ -755,6 +756,10 @@
         _renameError = null;
     }
 
+    // The buffer binds on `oninput` (Gitea #38): with the default `onchange` binding the
+    // browser's change event fires only AFTER the Enter keydown — so CommitRename saw the
+    // unchanged original name and silently cancelled — or on blur, which cancels by design.
+    // Binding per keystroke means Enter always commits what the operator typed.
     private async Task OnRenameKeyDown(KeyboardEventArgs e, TopoNode node)
     {
         if (e.Key == "Escape")