Add multi-source ebook support and per-indexer categories

Introduces granular toggles for Anna's Archive and Indexer Search as ebook sources, updates settings UI to a three-section layout, and documents the new configuration. Adds per-indexer category configuration with separate tabs for audiobooks and ebooks, updates API routes and types for new settings, and ensures legacy config migration. Indexer grouping and file organization logic now support the new category structure and ebook source toggles.

src/app/api/admin/settings/prowlarr/indexers/route.ts

@@ -19,7 +19,9 @@ interface SavedIndexerConfig {
   seedingTimeMinutes?: number; // Torrents only
   removeAfterProcessing?: boolean; // Usenet only
   rssEnabled?: boolean;
-  categories?: number[]; // Array of category IDs (default: [3030] for audiobooks)
+  audiobookCategories?: number[]; // Array of category IDs for audiobooks (default: [3030])
+  ebookCategories?: number[]; // Array of category IDs for ebooks (default: [7020])
+  categories?: number[]; // Legacy field for migration
 }
 
 /**
@@ -54,6 +56,12 @@ export async function GET(request: NextRequest) {
           const isAdded = !!saved;
           const isTorrent = indexer.protocol?.toLowerCase() === 'torrent';
 
+          // Migration: if old 'categories' field exists but new fields don't, migrate
+          const migratedAudiobookCategories = saved?.audiobookCategories ||
+            saved?.categories || // Legacy migration
+            [3030]; // Default to audiobooks category
+          const migratedEbookCategories = saved?.ebookCategories || [7020]; // Default to ebooks category
+
           const config: any = {
             id: indexer.id,
             name: indexer.name,
@@ -63,7 +71,8 @@ export async function GET(request: NextRequest) {
             isAdded, // Explicit flag for UI (new card-based interface)
             priority: saved?.priority || 10,
             rssEnabled: saved?.rssEnabled ?? false,
-            categories: saved?.categories || [3030], // Default to audiobooks category
+            audiobookCategories: migratedAudiobookCategories,
+            ebookCategories: migratedEbookCategories,
             supportsRss: indexer.capabilities?.supportsRss !== false, // Default to true if not specified
           };
 
@@ -117,7 +126,8 @@ export async function PUT(request: NextRequest) {
               protocol: indexer.protocol,
               priority: indexer.priority,
               rssEnabled: indexer.rssEnabled || false,
-              categories: indexer.categories || [3030], // Default to audiobooks if not specified
+              audiobookCategories: indexer.audiobookCategories || [3030], // Default to audiobooks
+              ebookCategories: indexer.ebookCategories || [7020], // Default to ebooks
             };
 
             // Add protocol-specific fields