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/audiobooks/AudiobookDetailsModal.tsx

@@ -336,6 +336,33 @@ export function AudiobookDetailsModal({
                     </button>
                   </div>
 
+                  {/* Audible Link */}
+                  <div>
+                    <p className="text-sm text-gray-500 dark:text-gray-400 mb-1">View Details</p>
+                    <a
+                      href={`https://www.audible.com/pd/${asin}`}
+                      target="_blank"
+                      rel="noopener noreferrer"
+                      className="inline-flex items-center gap-2 text-orange-600 dark:text-orange-400 hover:text-orange-700 dark:hover:text-orange-300 hover:underline transition-colors font-medium"
+                      title="View on Audible"
+                    >
+                      <span>Audible.com</span>
+                      <svg
+                        className="w-4 h-4 flex-shrink-0"
+                        fill="none"
+                        stroke="currentColor"
+                        viewBox="0 0 24 24"
+                      >
+                        <path
+                          strokeLinecap="round"
+                          strokeLinejoin="round"
+                          strokeWidth={2}
+                          d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14"
+                        />
+                      </svg>
+                    </a>
+                  </div>
+
                   {/* Availability Status */}
                   {isAvailable && (
                     <div>