Advance existing requests from Interactive Search

Pass requestId and requestedByUserId through request list and card components and into AudiobookDetailsModal. Add ADVANCEABLE_FROM_INTERACTIVE_SEARCH constant and logic so the Interactive Search modal routes to /api/requests/[id]/select-torrent for own/admin advanceable requests instead of creating a new request. Fix download-token usage to use the in-flight request id, extend Audiobook type with requestedByUserId, and add tests covering advance-vs-create routing and select-torrent behavior.

src/components/audiobooks/AudiobookCard.tsx

@@ -273,6 +273,8 @@ export function AudiobookCard({
         requestStatus={displayAudiobook.requestStatus}
         isAvailable={audiobook.isAvailable}
         requestedByUsername={audiobook.requestedByUsername}
+        requestId={audiobook.requestId}
+        requestedByUserId={audiobook.requestedByUserId}
         hasReportedIssue={audiobook.hasReportedIssue}
       />
     </>

src/components/audiobooks/AudiobookDetailsModal.tsx

@@ -23,6 +23,7 @@ import { FolderArrowDownIcon, EyeSlashIcon } from '@heroicons/react/24/outline';
 import { EyeSlashIcon as EyeSlashSolidIcon } from '@heroicons/react/24/solid';
 import { fetchWithAuth } from '@/lib/utils/api';
 import { useIsIgnored, useToggleIgnore } from '@/lib/hooks/useIgnoredAudiobooks';
+import { ADVANCEABLE_FROM_INTERACTIVE_SEARCH } from '@/lib/constants/request-statuses';
 
 interface AudiobookDetailsModalProps {
   asin: string;
@@ -35,6 +36,10 @@ interface AudiobookDetailsModalProps {
   requestStatus?: string | null;
   isAvailable?: boolean;
   requestedByUsername?: string | null;
+  /** In-flight request id for this audiobook (own or other user's). When set together with an advanceable status and own/admin viewer, Interactive Search → Download routes through select-torrent instead of creating a new request. */
+  requestId?: string | null;
+  /** Owner of the in-flight request (matcher-populated). Used together with the viewer's id/role to gate advance-vs-create routing. */
+  requestedByUserId?: string | null;
   hideRequestActions?: boolean;
   hasReportedIssue?: boolean;
   aiReason?: string | null;
@@ -79,6 +84,8 @@ export function AudiobookDetailsModal({
   requestStatus = null,
   isAvailable = false,
   requestedByUsername = null,
+  requestId = null,
+  requestedByUserId = null,
   hideRequestActions = false,
   hasReportedIssue = false,
   aiReason = null,
@@ -89,7 +96,7 @@ export function AudiobookDetailsModal({
   const { audiobook, audibleBaseUrl, isLoading, error } = useAudiobookDetails(isOpen ? asin : null);
   const { createRequest, isLoading: isRequesting } = useCreateRequest();
   const { ebookStatus, revalidate: revalidateEbookStatus } = useEbookStatus(isOpen && isAvailable ? asin : null);
-  const { downloadAvailable, requestId } = useDownloadStatus(isOpen ? asin : null);
+  const { downloadAvailable, requestId: downloadRequestId } = useDownloadStatus(isOpen ? asin : null);
   const { fetchEbook, isLoading: isFetchingEbook } = useFetchEbookByAsin();
 
   const { isIgnored, ignoredId, isLoading: isLoadingIgnore } = useIsIgnored(isOpen ? asin : null);
@@ -118,6 +125,15 @@ export function AudiobookDetailsModal({
   const status = getStatusInfo(isAvailable, effectiveStatus, requestedByUsername);
   const canShowEbookButtons = isAvailable && ebookStatus?.ebookSourcesEnabled && !ebookStatus?.hasActiveEbookRequest;
 
+  // Advance the existing request via select-torrent (instead of creating a new one)
+  // only when the viewer owns the request, or is admin, AND the status is one we route on.
+  // Outside this predicate the search modal falls back to today's "create new request" path.
+  const shouldAdvance = !!requestId
+    && !!user
+    && (requestedByUserId === user.id || user.role === 'admin')
+    && (ADVANCEABLE_FROM_INTERACTIVE_SEARCH as readonly string[]).includes(effectiveStatus ?? '');
+  const advanceRequestId = shouldAdvance ? requestId ?? undefined : undefined;
+
   useEffect(() => {
     setMounted(true);
   }, []);
@@ -192,10 +208,10 @@ export function AudiobookDetailsModal({
   };
 
   const handleDownload = async () => {
-    if (!requestId) return;
+    if (!downloadRequestId) return;
     setIsDownloading(true);
     try {
-      const res = await fetchWithAuth(`/api/requests/${requestId}/download-token`, { method: 'POST' });
+      const res = await fetchWithAuth(`/api/requests/${downloadRequestId}/download-token`, { method: 'POST' });
       if (!res.ok) throw new Error('Failed to get download link');
       const { downloadUrl } = await res.json();
       window.location.href = downloadUrl;
@@ -576,7 +592,7 @@ export function AudiobookDetailsModal({
                   )}
 
                   {/* Download Link - subtle utility, visible from any context */}
-                  {isAvailable && downloadAvailable && requestId && user?.permissions?.download !== false && (
+                  {isAvailable && downloadAvailable && downloadRequestId && user?.permissions?.download !== false && (
                     <div>
                       <p className="text-gray-500 dark:text-gray-400">Download</p>
                       <button
@@ -807,6 +823,7 @@ export function AudiobookDetailsModal({
             onSuccess={() => {
               onRequestSuccess?.();
             }}
+            requestId={advanceRequestId}
             audiobook={{
               title: audiobook.title,
               author: audiobook.author,