Refactor indexer management and improve search logic

Refactors admin settings to use a new IndexersTab and card-based indexer management UI, supporting category selection and improved configuration. Updates backend and API routes to handle indexer categories, propagate ASIN for better search scoring, and group indexers by categories to optimize Prowlarr searches. Enhances documentation to clarify non-terminal request matching and auto-completion behavior. Adds new reusable components for indexer management and category selection.

src/lib/processors/scan-plex.processor.ts

@@ -316,23 +316,23 @@ export async function processScanPlex(payload: ScanPlexPayload): Promise<any> {
       logger.info(`No orphaned audiobooks found`);
     }
 
-    // 6. Match downloaded requests against library
-    logger.info(`Checking for downloaded requests to match...`);
-    const downloadedRequests = await prisma.request.findMany({
+    // 6. Match all non-terminal requests against library
+    logger.info(`Checking for matchable requests...`);
+    const matchableRequests = await prisma.request.findMany({
       where: {
-        status: 'downloaded',
+        status: { notIn: ['available', 'cancelled'] },
         deletedAt: null,
       },
       include: { audiobook: true },
-      take: 50, // Limit to prevent overwhelming
+      take: 100, // Increased from 50 to handle more eligible requests
     });
 
-    logger.info(`Found ${downloadedRequests.length} downloaded requests to match`);
+    logger.info(`Found ${matchableRequests.length} matchable requests (all non-terminal statuses)`);
 
     let matchedCount = 0;
     const { findPlexMatch } = await import('../utils/audiobook-matcher');
 
-    for (const request of downloadedRequests) {
+    for (const request of matchableRequests) {
       try {
         const audiobook = request.audiobook;
 
@@ -346,7 +346,11 @@ export async function processScanPlex(payload: ScanPlexPayload): Promise<any> {
         });
 
         if (match) {
-          logger.info(`Match found! "${audiobook.title}" -> "${match.title}"`);
+          const originalStatus = request.status;
+          logger.info(
+            `Match found! "${audiobook.title}" -> "${match.title}"` +
+            (originalStatus !== 'downloaded' ? ` (was '${originalStatus}')` : '')
+          );
 
           // Update audiobook with matched library item ID (plexGuid or abs_item_id)
           const updateData: any = { updatedAt: new Date() };
@@ -362,12 +366,16 @@ export async function processScanPlex(payload: ScanPlexPayload): Promise<any> {
             data: updateData,
           });
 
-          // Update request to available
+          // Update request to available and clear any error state
           await prisma.request.update({
             where: { id: request.id },
             data: {
               status: 'available',
               completedAt: new Date(),
+              errorMessage: null,        // Clear any error state
+              searchAttempts: 0,          // Reset retry counters
+              downloadAttempts: 0,
+              importAttempts: 0,
               updatedAt: new Date(),
             },
           });
@@ -389,7 +397,7 @@ export async function processScanPlex(payload: ScanPlexPayload): Promise<any> {
       }
     }
 
-    logger.info(`Matched ${matchedCount}/${downloadedRequests.length} downloaded requests`, {
+    logger.info(`Matched ${matchedCount}/${matchableRequests.length} requests`, {
       totalScanned: libraryItems.length,
       newCount,
       updatedCount,