Include ticket_id in comment-edit audit log so it appears on the timeline (#87)

AuditLogModel::getTicketTimeline() requires, for entity_type='comment'
rows, that details.ticket_id match the ticket being viewed.
logCommentCreate() and delete-comment's audit call both correctly
include it; update_comment.php's audit call only set
comment_text_preview, so an edited comment's audit row was written
(visible in the admin's global Audit Log) but never matched the
timeline's join condition — a comment edit left no trace on the
ticket's own history, while deleting the same comment would be
visible.

Added ticket_id to the details array, using $comment['ticket_id']
already loaded earlier in the file for the access check. Verified
against real MariaDB: the fixed shape now correctly appears in
getTicketTimeline()'s results.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Lhz7pGMaoTfL5sdYS5XiKv

api/update_comment.php

@@ -104,7 +104,10 @@ try {
             'update',
             'comment',
             (string)$commentId,
-            ['comment_text_preview' => substr($commentText, 0, 100)]
+            [
+                'ticket_id' => $comment['ticket_id'] ?? null,
+                'comment_text_preview' => substr($commentText, 0, 100),
+            ]
         );
     }