fix(issues): Align handleDelete query key with fetch params

The optimistic delete was using a different query key than the fetch
because handleDelete always passed statsPeriod/start/end, but after
the previous fix those are only included when explicitly set in the URL.
This caused the cache update to miss and the deleted attachment stayed
visible.

Also removes the stale statsPeriod: '14d' from the screenshot filter
test expectation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: scttcper

static/app/views/issueDetails/groupEventAttachments/groupEventAttachments.spec.tsx

@@ -84,7 +84,6 @@ describe('GroupEventAttachments', () => {
         query: {
           screenshot: '1',
           environment: [],
-          statsPeriod: '14d',
         },
       })
     );

static/app/views/issueDetails/groupEventAttachments/groupEventAttachments.tsx

@@ -74,6 +74,9 @@ export function GroupEventAttachments({project, group}: GroupEventAttachmentsPro
 
   const {mutate: deleteAttachment} = useDeleteGroupEventAttachment();
 
+  const hasSetStatsPeriod =
+    location.query.statsPeriod || location.query.start || location.query.end;
+
   const handleDelete = (attachment: IssueAttachment) => {
     deleteAttachment({
       attachment,
@@ -83,10 +86,12 @@ export function GroupEventAttachments({project, group}: GroupEventAttachmentsPro
       orgSlug: organization.slug,
       cursor: location.query.cursor as string | undefined,
       environment: eventView.environment as string[],
-      start: eventView.start,
-      end: eventView.end,
-      statsPeriod: eventView.statsPeriod,
       eventQuery,
+      ...(hasSetStatsPeriod && {
+        start: eventView.start,
+        end: eventView.end,
+        statsPeriod: eventView.statsPeriod,
+      }),
     });
   };