feat: add agent workflow messaging and skill

package.json

@@ -1,6 +1,6 @@
 {
   "name": "xdrop",
-  "description": "Open source file transfer app that encrypts files in your browser and keeps plaintext file names, contents, and keys off the server",
+  "description": "Open source encrypted file transfer app for browsers and agent-driven terminal workflows, keeping plaintext file names, contents, and keys off the server",
   "private": true,
   "license": "AGPL-3.0-only",
   "homepage": "https://github.com/xixu-me/xdrop",