fix: update IncReconnect for auth failures; import metric in proxy manager for observable callback

proxy/manager.go

@@ -15,6 +15,7 @@ import (
 	"github.com/fosrl/newt/internal/telemetry"
 	"github.com/fosrl/newt/logger"
 	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/metric"
 	"golang.zx2c4.com/wireguard/tun/netstack"
 	"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
 )

websocket/client.go

@@ -313,7 +313,7 @@ func (c *Client) getToken() (string, error) {
 		telemetry.IncConnError(context.Background(), "auth", bin)
 		// Reconnect reason mapping for auth failures
 		if resp.StatusCode == http.StatusUnauthorized || resp.StatusCode == http.StatusForbidden {
-			telemetry.IncReconnect(context.Background(), c.config.ID, telemetry.ReasonAuthError)
+			telemetry.IncReconnect(context.Background(), c.config.ID, "client", telemetry.ReasonAuthError)
 		}
 		return "", fmt.Errorf("failed to get token with status code: %d, body: %s", resp.StatusCode, string(body))
 	}