feat(workspace): sealed-area names are confidential by default

The switcher listed sealed areas by name ('lbs', 'stromnetz') on
any glance or screenshot — but the names themselves often carry
client/mandate identity (usertest security finding). The sealed
section now renders one aggregated row ('2 sealed areas') with a
deliberate 'Show names' reveal per menu opening; selection still
pops the regular s:<slug> value. Settings -> Security gains 'list
sealed areas with their names right away' (WorkspacePrefs,
SidebarPrefs pattern, default off).

The aggregate row wraps to two lines — popup menus cap their
width and action texts must never be truncated (the first cut
showed '1 abgeschotte…' in the proof shot). Guard: switcher tests
cover aggregated-until-reveal and the Settings toggle; the old
direct-listing test now asserts the reveal contract. DE+EN.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/l10n/app_localizations_de.dart

@@ -3280,6 +3280,28 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get workspaceSealedHeader => 'ABGESCHOTTETE BEREICHE';
 
+  @override
+  String workspaceSealedAggregate(int n) {
+    String _temp0 = intl.Intl.pluralLogic(
+      n,
+      locale: localeName,
+      other: '$n abgeschottete Bereiche',
+      one: '1 abgeschotteter Bereich',
+    );
+    return '$_temp0';
+  }
+
+  @override
+  String get workspaceSealedRevealAction => 'Namen einblenden';
+
+  @override
+  String get settingsSealedNamesTitle =>
+      'Abgeschottete Bereiche direkt mit Namen anzeigen';
+
+  @override
+  String get settingsSealedNamesBody =>
+      'Bereichsnamen können schutzwürdig sein (Kunden-/Mandantenbezug). Standardmäßig zeigt der Projekt-Umschalter sie nur zusammengefasst; die Namen erscheinen erst nach einem Klick.';
+
   @override
   String get workspaceSealedRunning => 'läuft';