项目体检修复：删除破损的 LGBM 导入、8个死测试、2个死脚本、移除 pytz/lightgbm 依赖

src/analysis/trend_engine.py

@@ -18,7 +18,6 @@ from src.analysis.deb_algorithm import (
 from src.analysis.settlement_rounding import apply_city_settlement, is_exact_settlement_city
 from src.data_collection.city_registry import CITY_REGISTRY
 from src.data_collection.city_risk_profiles import get_city_risk_profile
-from src.models.lgbm_daily_high import predict_lgbm_daily_high
 
 SETTLEMENT_SOURCE_LABELS = {
     "metar": "METAR",
@@ -415,32 +414,7 @@ def analyze_weather_trend(
         peak_status = "before"
 
     if city_name and current_forecasts and deb_prediction is not None:
-        lgbm_prediction, _ = predict_lgbm_daily_high(
-            city_name=city_name,
-            current_forecasts=current_forecasts,
-            deb_prediction=deb_prediction,
-            current_temp=cur_temp,
-            max_so_far=max_so_far,
-            humidity=_sf(primary_current.get("humidity")),
-            wind_speed_kt=_sf(primary_current.get("wind_speed_kt")),
-            visibility_mi=_sf(primary_current.get("visibility_mi")),
-            local_hour=local_hour,
-            local_date=local_date_str,
-            peak_status=peak_status,
-        )
-        if lgbm_prediction is not None:
-            current_forecasts["LGBM"] = lgbm_prediction
-            blended_high, weight_info = calculate_dynamic_weights(
-                city_name, current_forecasts
-            )
-            if blended_high is not None:
-                deb_prediction = blended_high
-                deb_weights = weight_info
-                _deb_to_save = blended_high
-                if insights and "DEB 融合预测" in insights[0]:
-                    insights[0] = (
-                        f"🧬 <b>DEB 融合预测</b>：<b>{blended_high}{temp_symbol}</b> ({weight_info})"
-                    )
+        # DEB blending uses the already-computed set of model forecasts
                 if ai_features and "DEB系统已通过历史偏差矫正算出期待点是" in ai_features[0]:
                     ai_features[0] = (
                         f"🧬 DEB系统已通过历史偏差矫正算出期待点是: {blended_high}{temp_symbol}。"