Fix: BTCPay off by default in Node role, Caddy conditional ACME/ports

Agent-Logs-Url: https://github.com/naturallaw777/staging_alpha/sessions/2e2b84a8-c5e9-4eea-8bee-fc587bb3a6fa

Co-authored-by: naturallaw777 <99053422+naturallaw777@users.noreply.github.com>

modules/core/role-logic.nix

@@ -5,6 +5,7 @@
 
     # ── Server+Desktop Role (default) ─────────────────────────
     (lib.mkIf config.sovran_systemsOS.roles.server_plus_desktop {
+      sovran_systemsOS.web.btcpayserver = lib.mkDefault true;
     })
 
     # ── Desktop Only Role ─────────────────────────────────────