Deploy 1: i18n + Notifications + Global Search + Tests

- SetLocale middleware (ro/ru/en, session-first, user-persisted)
- Lang switcher in topbar (Filament render hook USER_MENU_BEFORE)
- POST /locale/{lang} route persists to user.locale + session
- Database notifications enabled on tenant panel (30s polling)
- GlobalSearch (Cmd+K / Ctrl+K) on Client, Vehicle, WorkOrder, Lead, Part
- Tests: TenantIsolation (4), AuthFlow (2), WorkOrderCalc (3), MarkupRule (3)

app/Filament/Tenant/Resources/LeadResource.php

@@ -30,6 +30,19 @@ class LeadResource extends Resource
 
     protected static ?int $navigationSort = 5;
 
+    public static function getGloballySearchableAttributes(): array
+    {
+        return ['name', 'phone', 'email', 'channel'];
+    }
+
+    public static function getGlobalSearchResultDetails(\Illuminate\Database\Eloquent\Model $record): array
+    {
+        return [
+            'Telefon' => $record->phone,
+            'Status' => $record->status,
+        ];
+    }
+
     public static function form(Schema $schema): Schema
     {
         return $schema->components([