Implement file hash-based library matching and remove fuzzy ASIN matching

Adds file hash-based matching for Audiobookshelf library items to ensure 100% accurate ASIN assignment for RMAB-organized content. Removes fuzzy matching from library availability checks, making all matching ASIN-only to eliminate false positives and race conditions. Updates database schema, processors, and matcher utilities; adds new tests and documentation for the new matching strategy. Removes obsolete scripts, Dockerfile, and related tests; updates docker-compose for test environments.

src/components/admin/indexers/IndexerManagement.tsx

@@ -23,8 +23,10 @@ interface ProwlarrIndexer {
 interface SavedIndexerConfig {
   id: number;
   name: string;
+  protocol: string;
   priority: number;
-  seedingTimeMinutes: number;
+  seedingTimeMinutes?: number; // Torrents only
+  removeAfterProcessing?: boolean; // Usenet only
   rssEnabled: boolean;
   categories: number[];
 }
@@ -134,7 +136,7 @@ export function IndexerManagement({
       indexer: indexer || {
         id: config.id,
         name: config.name,
-        protocol: 'torrent', // Default fallback
+        protocol: config.protocol,
         supportsRss: config.rssEnabled,
       },
       currentConfig: config,
@@ -251,7 +253,7 @@ export function IndexerManagement({
                 indexer={{
                   id: config.id,
                   name: config.name,
-                  protocol: 'torrent', // Will be populated correctly from fetched data
+                  protocol: config.protocol,
                 }}
                 onEdit={() => openEditModal(config)}
                 onDelete={() => handleDelete(config.id)}