feat: unify proxy config and centralize runtime logging

ensemble_models_feb_2026_deepseek.py

@@ -24,6 +24,9 @@ from datetime import timedelta
 from sklearn.preprocessing import StandardScaler
 from data.fetcher import BinanceDataFetcher
 from tsfm_public.models.tinytimemixer import TinyTimeMixerForPrediction
+from utils.network_proxy import apply_global_proxy_from_env
+
+apply_global_proxy_from_env()
 
 # ==================== 时区与美股判断 ====================