Add confirm dialogs and busy states for swap/transfer all actions.

Use available (free) balances for full-amount ops, support sub-account scope, and show clear success/failure feedback.

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

lib/options/options_register.py

@@ -296,7 +296,13 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
         if ex is None:
             return jsonify({"ok": False, "msg": err})
         force = (request.args.get("force") or "").strip().lower() in ("1", "true", "yes")
-        bal = cfg["fetch_options_balances"](ex, force=force)
+        scope = (request.args.get("scope") or "main").strip().lower()
+        bal = cfg["fetch_options_balances"](
+            ex,
+            force=force,
+            scope=scope,
+            sub_acct=cfg.get("sub_account_name") or "",
+        )
         return jsonify({"ok": True, **bal, "trade_budget": cfg["trade_budget"]})
 
     @app.route("/api/options/chain")