修复全仓复利关闭后仍无法开仓：前端不再残留选中全仓，后端强制改指定张数。

审计：开关关闭时隐藏全仓芯片并自动勾选指定张数；报价/余额热同步 compound_full_enabled；API 将 compound_full 归一为 sheets（缺张数默认1）；单测覆盖开关开关两种归一路径。

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

tests/test_options_budget_full.py

@@ -64,6 +64,35 @@ class TestOptionsBudgetModes(unittest.TestCase):
         self.assertIsNone(msg)
         self.assertEqual(count_live_option_positions([]), 0)
 
+    def test_normalize_size_mode_when_compound_off(self):
+        import os
+        from unittest.mock import patch
+
+        from lib.options import options_register as reg
+
+        with patch.dict(os.environ, {"OKX_OPTIONS_COMPOUND_FULL_ENABLED": "false"}):
+            mode, note = reg._normalize_size_mode("compound_full")
+            self.assertEqual(mode, "sheets")
+            self.assertIsNotNone(note)
+            mode2, note2 = reg._normalize_size_mode("budget_full")
+            self.assertEqual(mode2, "budget_full")
+            self.assertIsNone(note2)
+            mode3, _ = reg._normalize_size_mode("sheets")
+            self.assertEqual(mode3, "sheets")
+
+    def test_normalize_size_mode_when_compound_on(self):
+        import os
+        from unittest.mock import patch
+
+        from lib.options import options_register as reg
+
+        with patch.dict(os.environ, {"OKX_OPTIONS_COMPOUND_FULL_ENABLED": "true"}):
+            mode, note = reg._normalize_size_mode("budget_full")
+            self.assertEqual(mode, "compound_full")
+            self.assertIsNone(note)
+            mode2, _ = reg._normalize_size_mode("compound_full")
+            self.assertEqual(mode2, "compound_full")
+
 
 if __name__ == "__main__":
     unittest.main()