单独期权增加全仓复利模式：可选上限开关，仅允许一仓

用期权户全部可用×缓冲开仓，默认不设上限；开启上限后按 env 封顶，全仓时禁止已有持仓再开。

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

tests/test_options_budget_full.py

@@ -1,16 +1,69 @@
-"""按可用余额打满:min(余额, 单笔预算)."""
+"""按可用余额打满 / 全仓复利定仓."""
 from __future__ import annotations
 
-from lib.options.options_pricing_lib import resolve_budget_full_usdc
+import unittest
+
+from lib.options.options_pricing_lib import (
+    resolve_budget_full_usdc,
+    resolve_compound_full_usdc,
+)
+from lib.options.options_position_limit_lib import (
+    compound_full_single_position_block_msg,
+    count_live_option_positions,
+)
 
 
-def test_balance_above_budget_uses_budget():
-    assert resolve_budget_full_usdc(100.0, 10.0) == 10.0
+class TestOptionsBudgetModes(unittest.TestCase):
+    def test_balance_above_budget_uses_budget(self):
+        self.assertEqual(resolve_budget_full_usdc(100.0, 10.0), 10.0)
+
+    def test_balance_below_budget_uses_balance(self):
+        self.assertEqual(resolve_budget_full_usdc(5.0, 10.0), 5.0)
+
+    def test_balance_equals_budget(self):
+        self.assertEqual(resolve_budget_full_usdc(10.0, 10.0), 10.0)
+
+    def test_compound_full_no_cap_uses_all(self):
+        self.assertEqual(
+            resolve_compound_full_usdc(200.0, cap_enabled=False, cap_usdc=50.0),
+            200.0,
+        )
+
+    def test_compound_full_cap_on(self):
+        self.assertEqual(
+            resolve_compound_full_usdc(200.0, cap_enabled=True, cap_usdc=50.0),
+            50.0,
+        )
+        self.assertEqual(
+            resolve_compound_full_usdc(30.0, cap_enabled=True, cap_usdc=50.0),
+            30.0,
+        )
+
+    def test_compound_full_cap_invalid_falls_back_to_balance(self):
+        self.assertEqual(
+            resolve_compound_full_usdc(80.0, cap_enabled=True, cap_usdc=0),
+            80.0,
+        )
+        self.assertEqual(
+            resolve_compound_full_usdc(80.0, cap_enabled=True, cap_usdc=None),
+            80.0,
+        )
+
+    def test_compound_full_blocks_when_position_open(self):
+        rows = [{"instId": "ETH-USD_UM-260812-1870-P", "pos": "1"}]
+        msg = compound_full_single_position_block_msg(
+            object(), fetch_positions=lambda _ex: rows
+        )
+        self.assertIsNotNone(msg)
+        self.assertIn("1 笔", msg or "")
+
+    def test_compound_full_allows_when_flat(self):
+        msg = compound_full_single_position_block_msg(
+            object(), fetch_positions=lambda _ex: []
+        )
+        self.assertIsNone(msg)
+        self.assertEqual(count_live_option_positions([]), 0)
 
 
-def test_balance_below_budget_uses_balance():
-    assert resolve_budget_full_usdc(5.0, 10.0) == 5.0
-
-
-def test_balance_equals_budget():
-    assert resolve_budget_full_usdc(10.0, 10.0) == 10.0
+if __name__ == "__main__":
+    unittest.main()