Split OO budget per leg and size Call/Put independently.

Each half of the risk budget buys its own qty from ask; equal qty no longer forced.

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

backend/app/strategy/open_capacity.py

@@ -152,16 +152,17 @@ def assess_open_capacity(
                     ca = float(snap.call.ask)
                 if pa is None and snap.put and snap.put.ask:
                     pa = float(snap.put.ask)
-            except Exception:
-                pass
-        cush = float(
-            ledger.get_setting_float("oo_budget_cushion", s.oo_budget_cushion)
-            or s.oo_budget_cushion
-        )
-        cush = min(1.0, max(0.5, cush))
+                except Exception:
+                    pass
         if ca is not None and pa is not None and ca > 0 and pa > 0:
-            # 与定仓一致：按预留后的权利金需求估资金门
-            premium_need = (ca + pa) * opt_qty * (1.0 + fee_rate) * cush
+            call_q = float(opt_qty)
+            put_q = float(
+                ledger.get_setting_float("oo_put_qty_eth", call_q) or call_q
+            )
+            # 与定仓一致：两腿各自权利金
+            premium_need = (
+                (ca * call_q + pa * put_q) * (1.0 + fee_rate)
+            )
         else:
             premium_need = None
         margin_need = 0.0