bugfixes nov2025 (#3)

* Fix enter misbehaving.
* Cleanup after previous tui implementation.
* Fix race condition and improve logging
* Add filtering of the namespaces by text input in the wizard UI

internal/k8s/discovery.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"net"
 	"sort"
-	"strconv"
 	"strings"
 
 	corev1 "k8s.io/api/core/v1"
@@ -305,17 +304,3 @@ func CheckPortAvailability(port int) (bool, string, error) {
 	listener.Close()
 	return true, "", nil
 }
-
-// ValidatePort checks if a port number is valid.
-func ValidatePort(portStr string) (int, error) {
-	port, err := strconv.Atoi(portStr)
-	if err != nil {
-		return 0, fmt.Errorf("invalid port number: %s", portStr)
-	}
-
-	if port < 1 || port > 65535 {
-		return 0, fmt.Errorf("port must be between 1 and 65535, got %d", port)
-	}
-
-	return port, nil
-}