refactor: remove AuDD references and unused project files

Removed all files, dependencies, and mentions related to the AuDD API. Cleaned up the src directory, removing all non-developed or unused items, as part of a major cleanup. This change is due to the strategic shift towards using audio fingerprinting for song recognition, as opposed to sending the raw audio file itself.

src/controllers/pathController.js

@@ -0,0 +1,15 @@
+import filesFetcher from '../utils/filesFetcher.js';
+
+/**
+ * Handle the input path provided by the user to resolve file paths
+ * using the appropriate path handling utility. This controller function
+ * is responsible for initiating the file fetching process and ensuring
+ * that the paths returned comply with the expected format and conditions.
+ *
+ * @param {string} inputPath - The initial file or directory path provided by the user.
+ * @returns {Promise<string[]>} - A promise that resolves to an array of file paths,
+ *                                or rejects with an error if the operation fails.
+ */
+export async function fetchFiles(inputPath) {
+    return filesFetcher(inputPath);
+}