Enable host OTA over BLE and harden ESP-NOW slave distribution.

Allow the same staged firmware upload path on BLE as UART, fix distribute stack/event-group crashes, and recover sticky slave OTA sessions instead of failing with err=4.

Co-authored-by: Cursor <cursoragent@cursor.com>

goTool/cmd_ota_progress.go

@@ -5,14 +5,19 @@ import (
 	"fmt"
 )
 
-func runOtaProgress(sp *serialPort, args []string) error {
+func runOtaProgress(t otaTransport, args []string) error {
 	fs := flag.NewFlagSet("ota-progress", flag.ExitOnError)
 	clientID := fs.Uint("client", 0, "slave client id (0 = all in session)")
 	if err := fs.Parse(args); err != nil {
 		return err
 	}
 
-	r, err := QueryOtaSlaveProgress(sp, uint32(*clientID))
+	if sp, ok := t.(*serialPort); ok {
+		sp.mu.Lock()
+		defer sp.mu.Unlock()
+	}
+
+	r, err := QueryOtaSlaveProgress(t, uint32(*clientID))
 	if err != nil {
 		return err
 	}