fix(ui): stale filters applied after sort/page/time change on Request Logs (#25789)

The useEffect that re-fetches logs on sort/page/time changes:

  useEffect(() => {
    if (hasBackendFilters && accessToken) {
      performSearch(filters, currentPage);
    }
  }, [sortBy, sortOrder, currentPage, startTime, endTime, isCustomDate]);

intentionally omits `filters` and `hasBackendFilters` from its dep array
to avoid double-fetches when a filter is applied.  The side-effect is a
stale-closure bug: the effect captures `filters` and `hasBackendFilters`
from the render where its deps last changed, not from the render where
the user selected, e.g., a Key Alias.

Reproduce: set Key Alias → results appear correctly → change page or
sort → the effect fires with the OLD `filters` snapshot (no key_alias)
→ API request is sent without the filter → table shows unfiltered data.

Fix: store the latest `filters` and `hasBackendFilters` in refs that are
kept in sync on every render.  The sort/page/time effect reads from the
refs instead of the closure so it always uses the current filter state
without altering the dep array.

Co-authored-by: Bytechoreographer <Bytechoreographer@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4 (1M context) <noreply@anthropic.com>

ui/litellm-dashboard/src/components/view_logs/log_filter_logic.tsx

@@ -71,6 +71,14 @@ export function useLogFilterLogic({
   const [filters, setFilters] = useState<LogFilterState>(defaultFilters);
   const [backendFilteredLogs, setBackendFilteredLogs] = useState<PaginatedResponse | null>(null);
   const lastSearchTimestamp = useRef(0);
+
+  // Refs that always hold the latest filters and hasBackendFilters values.
+  // The sort/page/time effect below intentionally omits these from its dep array
+  // to avoid double-fetches when a filter changes; reading from refs instead of
+  // the closure prevents stale-closure bugs (e.g. the effect using a snapshot of
+  // filters taken before the user selected Key Alias).
+  const filtersRef = useRef(filters);
+  const hasBackendFiltersRef = useRef(false);
   const performSearch = useCallback(
     async (filters: LogFilterState, page = 1) => {
       if (!accessToken) return;
@@ -152,18 +160,25 @@ export function useLogFilterLogic({
     [filters],
   );
 
+  // Keep refs in sync on every render so the sort/page/time effect always reads
+  // the latest values without those values being in its dep array.
+  useEffect(() => {
+    filtersRef.current = filters;
+    hasBackendFiltersRef.current = hasBackendFilters;
+  }, [filters, hasBackendFilters]);
+
   // Refetch when sort, page, or time range changes (backend filters use their own fetch, not the main query)
   useEffect(() => {
-    if (hasBackendFilters && accessToken) {
+    if (hasBackendFiltersRef.current && accessToken) {
       // Cancel any pending debounced search to prevent it from overwriting this page's results
       debouncedSearch.cancel();
-      performSearch(filters, currentPage);
+      performSearch(filtersRef.current, currentPage);
     }
-    // Intentionally omitted from deps:
-    // - `filters` / `debouncedSearch` / `performSearch`: filter changes are handled by
-    //   handleFilterChange → debouncedSearch; adding them here would double-fetch on filter apply.
-    // - `hasBackendFilters` / `accessToken`: stable across sort/page/time changes; including them
-    //   would cause spurious re-runs when the filter state first becomes active.
+    // filters / hasBackendFilters are read via refs — avoids stale-closure bugs
+    // when sort/page/time changes after a filter (e.g. Key Alias) was set.
+    // debouncedSearch / performSearch: filter changes go through handleFilterChange
+    // → debouncedSearch; adding them here would cause double-fetches on filter apply.
+    // accessToken: stable across sort/page/time changes.
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [sortBy, sortOrder, currentPage, startTime, endTime, isCustomDate]);