Update documentation

- Add repository details to AGENTS.md for customized repo
- Add customizations section to README.md describing new features:
  - Persistent notifications for priority 10 with flashing
  - Sound control for priority 10 only
  - Stacking multiple notifications
  - Tray icon click to close all

AGENTS.md

@@ -1,5 +1,8 @@
 # Agent Guidelines
 
+## Repository
+This project uses a customized repository at `http://192.168.88.97:3000/kadu/gotify-tray-customized.git`. Clone from this repository only for the latest changes and customizations.
+
 ## Type Checking
 Run `pyright .` in the project root to perform static type checking with Pyright. Address any critical errors before committing changes.
 

README.md

@@ -30,6 +30,13 @@ A tray notification application for receiving messages from a [Gotify server](ht
 - Go through a history of all previously received messages.
 - Receive missed messages after losing network connection.
 
+## Customizations
+
+- **Persistent Notifications for Priority 10**: Messages with priority 10 display as persistent pop-up windows that stay on screen until clicked, with a flashing background for attention.
+- **Sound Notification Control**: Option to play notification sound only for priority 10 messages.
+- **Multiple Persistent Notifications**: Multiple priority 10 messages stack vertically and can be closed all at once by clicking any one or the tray icon.
+- **Enhanced UI Settings**: Added configurable options for persistent notifications and sound behavior in the settings dialog.
+
 
 ## Images