style(adminui): btn-groups + prose trim on top-level ops pages

Group related action buttons into btn-group/btn-group-sm on Alerts, Certificates,
ApiKeys and ScriptEdit; promote the RoleGrants Delete from btn-link to
btn-outline-danger. Replace the two inline style="border-color:var(--alert)"
no-ops with the .notice-alert class, and the undefined --surface-2 token in
Scripts with the theme's shipped --zebra-bg.

Delete unconditional documentation prose now covered by docs/ (Redundancy,
Telemetry, AlarmTracking, security, Reservations, AlarmHistorian, ScriptEditor),
keeping state banners and live captions. Correct the LDAP config key on
RoleGrants to Security:Ldap:GroupToRole (LdapOptions.SectionName) and drop the
same wrong key from Account with its deleted block; reword the stale
"Engine emit (F8/F9) is pending" script-log empty state.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/ScriptEdit.razor

@@ -60,11 +60,13 @@ else
             </div>
         </section>
 
-        @if (!string.IsNullOrWhiteSpace(_error)) { <div class="panel notice mt-3" style="border-color:var(--alert)">@_error</div> }
+        @if (!string.IsNullOrWhiteSpace(_error)) { <div class="panel notice notice-alert mt-3">@_error</div> }
 
         <div class="mt-3 d-flex gap-2">
-            <button type="submit" class="btn btn-primary" disabled="@_busy">@(IsNew ? "Create" : "Save changes")</button>
-            <a href="/scripts" class="btn btn-outline-secondary">Cancel</a>
+            <div class="btn-group" role="group">
+                <button type="submit" class="btn btn-primary" disabled="@_busy">@(IsNew ? "Create" : "Save changes")</button>
+                <a href="/scripts" class="btn btn-outline-secondary">Cancel</a>
+            </div>
             @if (!IsNew) { <button type="button" class="btn btn-outline-danger ms-auto" @onclick="DeleteAsync" disabled="@_busy">Delete</button> }
         </div>
     </EditForm>