ui(density): truncation sweep — Abbreviate + title on unbounded backend/free text (§1d Task 1)

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Drivers/DriverStatusPanel.razor

@@ -38,7 +38,7 @@
         }
         else if (_error is not null)
         {
-            <p class="mb-0" style="color:var(--bad)">SignalR error: @_error</p>
+            <p class="mb-0" style="color:var(--bad)" title="@_error">SignalR error: @DisplayText.Abbreviate(_error, 60)</p>
         }
         else if (_snapshot is null)
         {
@@ -166,7 +166,7 @@
 
                 @if (_opResultMessage is not null)
                 {
-                    <span class="chip @(_opResultOk ? "chip-ok" : "chip-bad")" style="font-size:0.8rem">@_opResultMessage</span>
+                    <span class="chip @(_opResultOk ? "chip-ok" : "chip-bad")" style="font-size:0.8rem" title="@_opResultMessageFull">@_opResultMessage</span>
                 }
             </div>
 
@@ -212,7 +212,11 @@
     private bool _busyReconnect;
     private bool _busyRestart;
     private bool _showRestartConfirm;
+    // Display text for the op-result chip (truncated at the ShowOpResult choke point) plus the
+    // untruncated original, which rides the chip's title attribute so the full message stays
+    // reachable on hover.
     private string? _opResultMessage;
+    private string? _opResultMessageFull;
     private bool _opResultOk;
     private System.Threading.Timer? _opResultClearTimer;
 
@@ -303,6 +307,7 @@
     {
         _busyReconnect = true;
         _opResultMessage = null;
+        _opResultMessageFull = null;
         StateHasChanged();
         try
         {
@@ -315,7 +320,7 @@
         }
         catch (Exception ex)
         {
-            ShowOpResult(false, ex.Message.Length > 60 ? ex.Message[..60] + "…" : ex.Message);
+            ShowOpResult(false, ex.Message);
         }
         finally
         {
@@ -329,6 +334,7 @@
         _showRestartConfirm = false;
         _busyRestart = true;
         _opResultMessage = null;
+        _opResultMessageFull = null;
         StateHasChanged();
         try
         {
@@ -341,7 +347,7 @@
         }
         catch (Exception ex)
         {
-            ShowOpResult(false, ex.Message.Length > 60 ? ex.Message[..60] + "…" : ex.Message);
+            ShowOpResult(false, ex.Message);
         }
         finally
         {
@@ -367,13 +373,17 @@
     private void ShowOpResult(bool ok, string message)
     {
         _opResultOk = ok;
-        _opResultMessage = message;
+        // Single truncation choke point: callers pass the untruncated message, the chip renders the
+        // abbreviation and carries the original on its title attribute.
+        _opResultMessageFull = message;
+        _opResultMessage = DisplayText.Abbreviate(message, 60);
         // Auto-clear the result chip after 8 s. System.Threading.Timer is used (not
         // System.Timers.Timer) so DisposeAsync can drain any in-flight callback.
         _opResultClearTimer?.Dispose();
         _opResultClearTimer = new System.Threading.Timer(_ =>
         {
             _opResultMessage = null;
+            _opResultMessageFull = null;
             InvokeAsync(StateHasChanged);
         }, null, TimeSpan.FromSeconds(8), Timeout.InfiniteTimeSpan);
     }