Merge main into tinygo and fix conflicts

pkg/interfaces/udp_tinygo.go

@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: 0BSD
+// Copyright (c) 2024-2026 Sudo-Ivan / Quad4.io
+//go:build tinygo
+// +build tinygo
+
+package interfaces
+
+import (
+	"fmt"
+	"net"
+	"sync"
+
+	"git.quad4.io/Networks/Reticulum-Go/pkg/common"
+)
+
+type UDPInterface struct {
+	BaseInterface
+	conn       net.Conn
+	addr       *net.UDPAddr
+	targetAddr *net.UDPAddr
+	readBuffer []byte
+	done       chan struct{}
+	stopOnce   sync.Once
+}
+
+func NewUDPInterface(name string, addr string, target string, enabled bool) (*UDPInterface, error) {
+	udpAddr, err := net.ResolveUDPAddr("udp", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	var targetAddr *net.UDPAddr
+	if target != "" {
+		targetAddr, err = net.ResolveUDPAddr("udp", target)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	ui := &UDPInterface{
+		BaseInterface: NewBaseInterface(name, common.IF_TYPE_UDP, enabled),
+		addr:          udpAddr,
+		targetAddr:    targetAddr,
+		readBuffer:    make([]byte, common.NUM_1064),
+		done:          make(chan struct{}),
+	}
+
+	ui.MTU = common.NUM_1064
+
+	return ui, nil
+}
+
+func (ui *UDPInterface) Start() error {
+	// TinyGo doesn't support UDP servers, only clients
+	return fmt.Errorf("UDPInterface not supported in TinyGo - UDP server functionality requires net.ListenUDP")
+}
+
+func (ui *UDPInterface) Send(data []byte, addr string) error {
+	// TinyGo doesn't support UDP sending
+	return fmt.Errorf("UDPInterface Send not supported in TinyGo - requires UDP client functionality")
+}
+
+func (ui *UDPInterface) Stop() error {
+	ui.Mutex.Lock()
+	defer ui.Mutex.Unlock()
+	ui.Online = false
+	return nil
+}
+