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.

internal/apphost/app.go

@@ -76,6 +76,18 @@ type PingBestResult struct {
 func New(mgr *core.Manager, cfgPath string, logBuf *bytes.Buffer) *App {
 	// Monthly plan upkeep: check at start and then periodically.
 	mgr.StartAutoRenew(6 * time.Hour)
+	// NordVPN-style: silently issue a panel account + import configs.
+	go func() {
+		time.Sleep(2 * time.Second)
+		if !mgr.ProvisionConfigured() {
+			return
+		}
+		if out, err := mgr.EnsureAutoProvision(); err != nil {
+			fmt.Fprintf(logBuf, "auto-provision: %v\n", err)
+		} else if out.Created {
+			fmt.Fprintf(logBuf, "auto-provision: создан %s · серверов %d\n", out.Username, out.Imported)
+		}
+	}()
 	return &App{
 		Mgr:     mgr,
 		CfgPath: cfgPath,
@@ -410,7 +422,7 @@ func (a *App) ApplyUpdate() (string, error) {
 			os.Exit(0)
 		}()
 	}
-	return "Устанавливается v" + latest + "… Navis перезапустится.", nil
+	return "Устанавливается v" + latest + "… EvilFox перезапустится.", nil
 }
 
 func (a *App) AutoCheckUpdate() {