[recovery] fix: guard IssuesList against GitHub issues with null user

GitHub's REST issues API returns `user: null` for issues authored by
deleted ("ghost") accounts. IssuesList renders on the public
/contributing page and read `issue.user.login` unguarded inside its
`.map()` callback, so a single such issue in the cached GFI list crashed
the SSR render with "Cannot read properties of undefined (reading
'login')". Filter out issues without a user before rendering.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: pettinarip

src/components/IssuesList/index.tsx

@@ -26,40 +26,42 @@ const IssuesList = async ({ className }: IssuesListProps) => {
 
   return (
     <Grid className={cn("my-7", className)}>
-      {issues.map((issue) => (
-        <Stack
-          className="gap-4 rounded-md border border-border p-4"
-          key={issue.title}
-        >
-          <Stack className="gap-2">
-            <HStack className="gap-2">
-              <Avatar
-                name={issue.user.login}
-                src={issue.user.avatar_url}
-                size="sm"
-                href={`https://github.com/${issue.user.login}`}
-              />
-              <p className="text-sm">by {issue.user.login}</p>
-            </HStack>
+      {issues
+        .filter((issue) => issue.user)
+        .map((issue) => (
+          <Stack
+            className="gap-4 rounded-md border border-border p-4"
+            key={issue.title}
+          >
+            <Stack className="gap-2">
+              <HStack className="gap-2">
+                <Avatar
+                  name={issue.user.login}
+                  src={issue.user.avatar_url}
+                  size="sm"
+                  href={`https://github.com/${issue.user.login}`}
+                />
+                <p className="text-sm">by {issue.user.login}</p>
+              </HStack>
 
-            <InlineLink
-              href={issue.html_url}
-              className="no-underline hover:underline"
-            >
-              {issue.title}
-            </InlineLink>
+              <InlineLink
+                href={issue.html_url}
+                className="no-underline hover:underline"
+              >
+                {issue.title}
+              </InlineLink>
+            </Stack>
+            <Flex className="flex-wrap gap-1">
+              {issue.labels.map((label) => {
+                return (
+                  <Tag key={label.id} variant="outline">
+                    <Emoji text={label.name} />
+                  </Tag>
+                )
+              })}
+            </Flex>
           </Stack>
-          <Flex className="flex-wrap gap-1">
-            {issue.labels.map((label) => {
-              return (
-                <Tag key={label.id} variant="outline">
-                  <Emoji text={label.name} />
-                </Tag>
-              )
-            })}
-          </Flex>
-        </Stack>
-      ))}
+        ))}
     </Grid>
   )
 }