test(debug): 添加因子回测一致性问题的调试测试套件

- 分析GTJA_alpha032等因子在不同LOOKBACK_DAYS下的差异来源
- 验证cs_rank嵌套和截面股票数量对结果的影响
- 测试ts_rank NaN处理和除法除零修复

src/experiment/regression.py

@@ -25,7 +25,6 @@ from src.training.config import TrainingConfig
 from src.experiment.common import (
     SELECTED_FACTORS,
     FACTOR_DEFINITIONS,
-    EXCLUDED_FACTORS,
     get_label_factor,
     register_factors,
     prepare_data,
@@ -97,6 +96,31 @@ print("=" * 80)
 print("\n[1] 创建 FactorEngine")
 engine = FactorEngine()
 
+EXCLUDED_FACTORS = [
+    'GTJA_alpha010',
+    'GTJA_alpha005',
+    'GTJA_alpha036',
+    'GTJA_alpha027',
+    'GTJA_alpha053',
+    'GTJA_alpha073',
+    'GTJA_alpha104',
+    'GTJA_alpha103',
+    'GTJA_alpha087',
+    'GTJA_alpha092',
+    'GTJA_alpha085',
+    'GTJA_alpha044',
+    'GTJA_alpha062',
+    'GTJA_alpha124',
+    'GTJA_alpha133',
+    'GTJA_alpha131',
+    'GTJA_alpha117',
+    'GTJA_alpha157',
+    'GTJA_alpha162',
+    'GTJA_alpha177',
+    'GTJA_alpha180',
+    'GTJA_alpha191',
+]
+
 # 2. 使用 metadata 定义因子
 print("\n[2] 定义因子（从 metadata 注册）")
 feature_cols = register_factors(