fix: 组合页成员指标改用portfolio组合模拟口径(替代满仓模拟)

之前组合页v_weak显示满仓模拟(58.8%/5.5%/9.4%), 实际8槽组合是178%/10.7%/16.4%
修正: members改用portfolio(组合模拟带槽位数), 显示真实组合收益
v_next4用5槽(57.6%/4.6%/23.4%), v_weak用8槽(178%/10.7%/16.4%)

evolution/evolution_api.py

@@ -137,9 +137,10 @@ def get_combo_dashboard():
                 "win_rate": s.get("win_rate"),
                 "avg_profit_pct": s.get("avg_profit_pct"),
                 "avg_hold_days": s.get("avg_hold_days"),
-                "cagr_pct": pf.get("cagr_pct"),
-                "return_pct": pf.get("total_return_pct"),
-                "max_dd_pct": pf.get("portfolio_max_dd_pct"),
+                "cagr_pct": p5.get("cagr_pct"),
+                "return_pct": p5.get("total_return_pct"),
+                "max_dd_pct": p5.get("portfolio_max_dd_pct"),
+                "slots": p5.get("slots") or 6,
                 "universality": s.get("universality", {}),
                 # 组合模拟实际执行笔数(扣费后) + 年均(手工可行性参考)
                 "positions_taken_5slot": p5.get("positions_taken"),