refactor: ♻️ Rewrite media management code

classes/media/media-hasher.ts

@@ -0,0 +1,20 @@
+/**
+ * @packageDocumentation
+ * @module MediaManager/Utils
+ */
+
+/**
+ * Utility class for hashing media files.
+ */
+export class MediaHasher {
+    /**
+     * Generates a SHA-256 hash for a given file.
+     * @param file - The file to hash.
+     * @returns A promise that resolves to the SHA-256 hash of the file in hex format.
+     */
+    public async getMediaHash(file: File): Promise<string> {
+        const arrayBuffer = await file.arrayBuffer();
+        const hash = new Bun.SHA256().update(arrayBuffer).digest("hex");
+        return hash;
+    }
+}