自成长：分支评估+剪枝+报告接入

补齐「顺势而为 环境预判 策略多分枝」体系中缺失的组件：

branch_evaluator.py（新增）— 每30min评估所有策略树分支
  1. detect_scenario() 获取当前宏观情景
  2. 对42只股票评估哪个分支当前适用
  3. 适用分支 trigger_count+1, last_triggered=now
  4. 触发>=3次且成功率<30%→标记pruning_candidate
  5. 无决策树的股票自动初始化（init_default_branches）

prune_branches.py（新增）— 每日16:30收盘后剪枝
  阈值：触发>=3次且成功率<30%→裁掉并归档到pruned_branches
  Dad说「每周太低频」→改为每日

stale_push_wlin.py（修改）— 报告每只股增加分支行：
  【弱势震荡→buy_dip】价格回调到支撑区，弱势市场低吸

cron更新：
  分支扫描(b809fcabfa5b) → 指向branch_evaluator.py, 每30min
  剪枝(a3697c108c7b) → 指向prune_branches.py, 每日16:30

自成长核心：branch_evaluator 运行时自动发现并初始化无策略树股票,
252个分支已生成, trigger_count已开始累积, 反馈循环上线

scripts/stale_push_wlin.py

@@ -299,6 +299,21 @@ def main():
     except Exception:
         total_assets = available_cash * 5  # fallback
 
+    # 加载策略树模块（获取当前情景+分支评估）
+    st = None
+    scenario_id = ""
+    scenario_label = ""
+    try:
+        import importlib.util
+        spec = importlib.util.spec_from_file_location("st_module", "/home/hmo/MoFin/strategy_tree.py")
+        st = importlib.util.module_from_spec(spec)
+        spec.loader.exec_module(st)
+        sc = st.detect_scenario()
+        scenario_id = sc.get("id", "")
+        scenario_label = sc.get("label", "")
+    except Exception:
+        pass
+
     def calc_position(lot_cost, rr, market_factor, cat, code=""):
         # 理论推荐仓位(% of 总资产) — 仅基于RR+市场+品种，不受现金限制
         if rr >= 5:
@@ -419,6 +434,26 @@ def main():
             f"    仓位：理论{theo_pct}%×总资产 | 建议{actual_pct}%（{details}）"
         )
 
+        # 读分支评估
+        branch_line = ""
+        if st and scenario_id:
+            try:
+                results = st.evaluate_branches(code, scenario_id, price, d.get("shares", 0), d.get("cost", 0))
+                applicable = [r for r in results if r.get("applicable")]
+                if applicable:
+                    # 取优先级最高的适用分支
+                    best = min(applicable, key=lambda r: r.get("priority", 999))
+                    action = best.get("action_type", "hold")
+                    rationale = best.get("rationale", "")
+                    branch_line = f"    【{scenario_label}→{action}】{rationale}"
+                else:
+                    branch_line = f"    【{scenario_label}→持有】无匹配分支"
+            except Exception:
+                branch_line = ""
+        if branch_line:
+            # 追加到上一个元素
+            lines[-1] += f"\n{branch_line}"
+
     lines.insert(0, f"【知微】自选买入提醒 {now} | 总资产{total_assets:,.0f}元")
     out = "\n".join(lines)
     print(out)