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/app/setup/steps/ProwlarrStep.tsx

@@ -21,8 +21,10 @@ interface ProwlarrStepProps {
 interface SelectedIndexer {
   id: number;
   name: string;
+  protocol: string;
   priority: number;
-  seedingTimeMinutes: number;
+  seedingTimeMinutes?: number; // Torrents only
+  removeAfterProcessing?: boolean; // Usenet only
   rssEnabled: boolean;
   categories: number[];
 }