complete story 6.6 with qa test

lang/en/export.php

@@ -81,4 +81,24 @@ return [
     'filters_applied' => 'Filters Applied',
     'no_filters' => 'No filters applied',
     'libra_law_firm' => 'Libra Law Firm',
+
+    // Timeline Export
+    'export_timelines' => 'Export Timelines',
+    'export_timelines_description' => 'Export timeline and case data in CSV or PDF format',
+    'timelines_export_title' => 'Timelines Export Report',
+    'case_name' => 'Case Name',
+    'case_reference' => 'Case Reference',
+    'created_date' => 'Created Date',
+    'updates_count' => 'Updates',
+    'last_update' => 'Last Update',
+    'updates' => 'Updates',
+    'no_timelines_match' => 'No timelines match the selected filters.',
+    'search_client_placeholder' => 'Search by name or email...',
+    'include_updates' => 'Include Update Content',
+    'include_updates_description' => 'When enabled, PDF export will include all update entries for each timeline.',
+    'more_updates' => '... and :count more updates',
+
+    // Timeline Statuses
+    'timeline_status_active' => 'Active',
+    'timeline_status_archived' => 'Archived',
 ];