Merge pull request #642 from Lixeer/main

fix: better session management for `github_copilot_provider`

cmd/picoclaw/cmd_gateway.go

@@ -211,6 +211,9 @@ func gatewayCmd() {
 	<-sigChan
 
 	fmt.Println("\nShutting down...")
+	if cp, ok := provider.(providers.StatefulProvider); ok {
+		cp.Close()
+	}
 	cancel()
 	healthServer.Stop(context.Background())
 	deviceService.Stop()