chore(frontend): migrate from npm to Bun for dependency management and scripts

- Updated README to replace npm commands with Bun equivalents.
- Added `bun.lock` file to track Bun-managed dependencies.

frontend/public/mockServiceWorker.js

@@ -7,7 +7,7 @@
  * - Please do NOT modify this file.
  */
 
-const PACKAGE_VERSION = '2.12.7';
+const PACKAGE_VERSION = '2.12.10';
 const INTEGRITY_CHECKSUM = '4db4a41e972cec1b64cc569c66952d82';
 const IS_MOCKED_RESPONSE = Symbol('isMockedResponse');
 const activeClientIds = new Set();