Release 4.0.0+1: rebrand Navis → EvilFox; centralized Remnawave auto-provisioning (panel credentials baked into binary); remove Remnawave API UI; Windows 4.0.0.1.

Keep dist/navis-release/ path and ship Navis.exe as a same-hash alias of EvilFox.exe so 3.x clients can still update from the Windows branch feed.

cmd/vpnapp/main_darwin.go

@@ -71,7 +71,7 @@ func main() {
 		log.Printf("open UI: %v — откройте вручную: %s", err, uiURL)
 		fmt.Println(uiURL)
 	} else {
-		log.Printf("Navis UI: %s", uiURL)
+		log.Printf("EvilFox UI: %s", uiURL)
 	}
 
 	sig := make(chan os.Signal, 1)
@@ -96,7 +96,7 @@ func openAppWindow(uiURL string) error {
 func fatalf(format string, args ...any) {
 	msg := fmt.Sprintf(format, args...)
 	log.Println(msg)
-	_ = exec.Command("osascript", "-e", fmt.Sprintf(`display alert "Navis" message %q`, msg)).Run()
+	_ = exec.Command("osascript", "-e", fmt.Sprintf(`display alert "EvilFox" message %q`, msg)).Run()
 	os.Exit(1)
 }