complete story 4.2 with qa tests

lang/en/timelines.php

@@ -30,4 +30,24 @@ return [
     // Search
     'no_clients_found' => 'No clients found matching your search.',
     'type_to_search' => 'Type at least 2 characters to search...',
+
+    // Timeline show page
+    'reference' => 'Reference',
+    'created' => 'Created',
+
+    // Updates management
+    'add_update' => 'Add Update',
+    'update_text' => 'Update Text',
+    'update_placeholder' => 'Enter the update details...',
+    'update_min_chars' => 'Minimum 10 characters required',
+    'add_update_button' => 'Add Update',
+    'save_edit' => 'Save Changes',
+    'updates_history' => 'Updates History',
+    'no_updates' => 'No updates yet. Add the first update above.',
+    'edit' => 'Edit',
+    'edited' => 'Edited',
+
+    // Validation messages for updates
+    'update_text_required' => 'Please enter the update text.',
+    'update_text_min' => 'The update must be at least 10 characters.',
 ];