feat: add i18n support for Vietnamese and English

lang/en/feedback.php

@@ -0,0 +1,54 @@
+<?php
+
+return [
+    // ClosingService
+    'already_closed' => 'This ticket has already been closed.',
+    'close_permission_denied' => 'Only department managers can close tickets.',
+    'close_department_only' => 'You can only close tickets in your managed department.',
+    'proof_required' => 'Proof of resolution is required to complete the process.',
+    'already_resolved' => 'This ticket has already been resolved or closed.',
+
+    // TransferService
+    'transfer_reason_required' => 'Please enter a transfer reason.',
+
+    // FileService
+    'file_type_not_allowed' => 'File type :type is not allowed. Allowed: jpg, png, pdf, mp4, mov.',
+    'file_size_exceeds' => 'File size exceeds :max KB.',
+
+    // EditFeedback page
+    'transfer_department' => 'Transfer Department',
+    'target_department' => 'Target Department',
+    'assign_to_optional' => 'Assign To (optional)',
+    'reason' => 'Reason',
+    'transferred_successfully' => 'Transferred successfully',
+    'close_ticket' => 'Close Ticket',
+    'close_confirm' => 'Are you sure you want to close this ticket? This action CANNOT be undone.',
+    'close_submit' => 'Close',
+    'closed_successfully' => 'Ticket closed successfully',
+
+    // InteractionsRelationManager
+    'interaction_history' => 'Interaction History',
+    'interaction_type_note' => 'Note',
+    'interaction_type_status_change' => 'Status Change',
+    'interaction_type_assignment' => 'Assignment / Forward',
+    'view_attachments' => 'View Attachments',
+    'add_interaction' => 'Add Interaction',
+    'assigned_successfully' => 'Feedback assigned successfully',
+    'status_updated' => 'Status updated successfully',
+
+    // Notifications
+    'notif_ticket_closed_subject' => 'Ticket #:id has been closed',
+    'notif_ticket_closed_ticket' => 'Ticket: :title',
+    'notif_ticket_closed_by' => 'Closed by: :name',
+    'notif_view_ticket' => 'View Ticket',
+    'notif_ticket_closed_message' => 'Ticket #:id ":title" has been closed by :actor.',
+
+    'notif_ticket_transferred_subject' => 'Ticket #:id has been transferred to your department',
+    'notif_ticket_transferred_by' => 'Transferred by: :name',
+    'notif_ticket_transferred_reason' => 'Reason: :reason',
+    'notif_ticket_transferred_message' => 'Ticket #:id ":title" has been transferred to your department by :sender.',
+
+    // CreateFeedback
+    'created_via' => 'Feedback created via :channel',
+    'unknown_channel' => 'unknown channel',
+];