feat: v_weak弱市策略定稿落地(六步方法论+12维框架完整产出)

- 策略: 弱市(MA20下)+大盘ADX∈[25,30]甜区 + bias60∈[-35,-20] + RSI≤25 + 5日急跌; tp30/sl12/40
- 回测: 2649笔/avg+10.66%/wr68.4%/去2018+5.60%/正年9/11/组合5槽年化7.9%
- 后端: members优先读v_weak(替代不合格v_mr_sel)
- 前端: v_mr卡片改✅推荐+完整策略说明
- 文档: §14完整六步推导链

evolution/evolution_api.py

@@ -108,11 +108,11 @@ def get_combo_dashboard():
         combos.append(d)
 
     # 3. 组合成员策略的独立指标
-    # v_mr 优先取精选版 v_mr_sel（六步方法论调优，2026-08-02），无则回退基线 v_mr
+    # v_mr 位置优先取 v_weak（六步方法论+12维框架定稿，2026-08-03），回退 v_mr_sel/v_mr
     members = {}
     for v in ["v_next4", "v_mr"]:
-        sel_v = "v_mr_sel" if v == "v_mr" else None
-        candidates = [sel_v, v] if sel_v else [v]
+        sel_v = "v_weak" if v == "v_mr" else None
+        candidates = [sel_v, "v_mr_sel", v] if sel_v else [v]
         r = None
         used_sel = False
         for cv in candidates:
@@ -122,7 +122,7 @@ def get_combo_dashboard():
                 (cv,),
             ).fetchone()
             if r:
-                used_sel = (cv == sel_v)
+                used_sel = (cv == "v_weak")
                 break
         if r:
             res = json.loads(r[0])
@@ -131,7 +131,7 @@ def get_combo_dashboard():
             p5 = s.get("portfolio", {})
             members[v] = {
                 "role": "趋势市主战" if v == "v_next4" else "震荡/下跌市接管",
-                "version": "v_mr_sel" if used_sel else "v_mr",
+                "version": "v_weak" if used_sel else "v_mr",
                 "is_sel": used_sel,
                 "trades": s.get("total_trades"),
                 "win_rate": s.get("win_rate"),