Add Windows native notifications for chat sessions

- Add tauri-plugin-notification for native Windows notifications
- Send notification when new chat session is started
- Configure notification permissions in capabilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/desktop/src-tauri/src/chat.rs

@@ -12,6 +12,7 @@ use std::sync::Arc;
 use std::time::Duration;
 use tauri::async_runtime::JoinHandle;
 use tauri::{Emitter, Manager, WebviewWindowBuilder, WebviewUrl};
+use tauri_plugin_notification::NotificationExt;
 use tokio::sync::Notify;
 
 // ============================================================================
@@ -340,6 +341,27 @@ impl ChatRuntime {
                                                     },
                                                 );
 
+                                                // Enviar notificacao nativa do Windows
+                                                let notification_title = format!(
+                                                    "Chat iniciado - Chamado #{}",
+                                                    session.ticket_ref
+                                                );
+                                                let notification_body = format!(
+                                                    "{} iniciou um chat de suporte",
+                                                    session.agent_name
+                                                );
+                                                if let Err(e) = app
+                                                    .notification()
+                                                    .builder()
+                                                    .title(&notification_title)
+                                                    .body(&notification_body)
+                                                    .show()
+                                                {
+                                                    crate::log_warn!(
+                                                        "Falha ao enviar notificacao: {e}"
+                                                    );
+                                                }
+
                                                 // Abrir janela de chat automaticamente
                                                 if let Err(e) = open_chat_window_internal(
                                                     &app,

apps/desktop/src-tauri/src/lib.rs

@@ -298,6 +298,7 @@ pub fn run() {
         .plugin(StorePluginBuilder::default().build())
         .plugin(tauri_plugin_updater::Builder::new().build())
         .plugin(tauri_plugin_process::init())
+        .plugin(tauri_plugin_notification::init())
         .on_window_event(|window, event| {
             if let WindowEvent::CloseRequested { api, .. } = event {
                 api.prevent_close();