Fix OKX spot swap tgtCcy and show options trading USDT in header.

OKX requires quote_ccy/base_ccy for market orders; include trading_usdt in balance display and total funds.

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

tests/test_instance_header_stats_lib.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 import unittest
 
 from lib.instance.instance_embed_context_lib import (
+    options_funding_label,
     profit_loss_ratio_from_averages,
     profit_loss_ratio_from_trades,
     total_funds_usdt,
@@ -27,6 +28,15 @@ class TestHeaderStatsLib(unittest.TestCase):
     def test_total_funds_usdt(self):
         self.assertEqual(total_funds_usdt(100.5, 59.27), 159.77)
         self.assertIsNone(total_funds_usdt(None, 10))
+        self.assertEqual(
+            total_funds_usdt(100, 50, options_trading_usdc=0.2, options_trading_usdt=10),
+            160.2,
+        )
+
+    def test_options_funding_label(self):
+        self.assertEqual(options_funding_label(1.5, 10), "1.50 USDC · 10.00 USDT")
+        self.assertEqual(options_funding_label(None, 10), "10.00 USDT")
+        self.assertEqual(options_funding_label(None, None), "—")
 
 
 if __name__ == "__main__":

tests/test_okx_spot_swap.py

@@ -0,0 +1,35 @@
+"""OKX USDT/USDC 现货市价兑换参数."""
+from __future__ import annotations
+
+import unittest
+from unittest.mock import MagicMock
+
+from lib.exchange.okx_options_lib import spot_market_swap_usdt_usdc
+
+
+class TestOkxSpotSwap(unittest.TestCase):
+    def test_usdt_to_usdc_uses_quote_ccy(self):
+        ex = MagicMock()
+        ex.private_post_trade_order.return_value = {
+            "data": [{"sCode": "0", "ordId": "1"}],
+        }
+        result = spot_market_swap_usdt_usdc(ex, direction="usdt_to_usdc", amount=10)
+        self.assertTrue(result["ok"])
+        body = ex.private_post_trade_order.call_args[0][0]
+        self.assertEqual(body["tgtCcy"], "quote_ccy")
+        self.assertEqual(body["side"], "buy")
+
+    def test_usdc_to_usdt_uses_base_ccy(self):
+        ex = MagicMock()
+        ex.private_post_trade_order.return_value = {
+            "data": [{"sCode": "0", "ordId": "2"}],
+        }
+        result = spot_market_swap_usdt_usdc(ex, direction="usdc_to_usdt", amount=5)
+        self.assertTrue(result["ok"])
+        body = ex.private_post_trade_order.call_args[0][0]
+        self.assertEqual(body["tgtCcy"], "base_ccy")
+        self.assertEqual(body["side"], "sell")
+
+
+if __name__ == "__main__":
+    unittest.main()