add showcase, account switching and reset

Author: risunCode

README.md

@@ -8,6 +8,10 @@
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
 
 <img width="1398" height="885" alt="SurfManager Screenshot" src="https://github.com/user-attachments/assets/82268ac2-c360-40c0-866a-c87a2db9aba5" />
+ 
+## Showcase
+
+https://github.com/user-attachments/assets/7621f048-3fe6-4299-bf19-29fa92522626
 
 
 ## 👋 Welcome to SurfManager!