fix(knowledge): show the filters while a custom window waits for its days

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/home/components/knowledge-search-results/knowledge-search-results.test.tsx

@@ -257,6 +257,8 @@ describe('result paging and the custom window', () => {
     await render(undefined, '?updated=custom')
     expect(mocks.search.mock.calls.at(-1)![1]).toBe('')
     expect(container.textContent).toContain('Choose the days to search.')
+    /** The filters, and the picker among them, are shown so the days can be chosen. */
+    expect(container.textContent).toContain('Updated between')
     /** One day alone is not a window either; a deep link with only `from` waits for `to`. */
     await render(undefined, '?updated=custom&from=2026-09-01')
     expect(mocks.search.mock.calls.at(-1)![1]).toBe('')

apps/sim/app/workspace/[workspaceId]/home/components/knowledge-search-results/knowledge-search-results.tsx

@@ -214,8 +214,12 @@ function SearchResults({ scope, query, onSummarize }: SearchResultsProps) {
       : null
 
   const showResults = !noSources && !failed && !basesPending && documents.length > 0
+  /** A custom window waiting for its days must show the filters, or the picker is unreachable. */
   const showFilters =
-    hasShownFilters || showResults || (!noSources && !pending && !failed && !!search && !partial)
+    hasShownFilters ||
+    showResults ||
+    awaitingRange ||
+    (!noSources && !pending && !failed && !!search && !partial)
   if (showFilters && !hasShownFilters) setHasShownFilters(true)
 
   return noSources ? (