chore: PyTorch改为正式依赖，不再作为可选

pyproject.toml

@@ -19,6 +19,7 @@ dependencies = [
     "scikit-learn>=1.5.2",
     "xgboost>=2.1.0",
     "lightgbm>=4.5.0",
+    "torch==2.5.1",
 
     # 工具
     "openpyxl>=3.1.5",
@@ -27,15 +28,11 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
-# PyTorch 为可选依赖（安装约 800MB，仅训练神经网络时需要）
-torch = [
-    "torch==2.5.1",
-]
 dev = [
     # 测试工具
     "pytest>=7.0",
-    "black>=22.0",     # 代码格式化
-    "mypy>=1.0",       # 类型检查
+    "black>=22.0",
+    "mypy>=1.0",
 ]
 
 [build-system]

requirements.txt

@@ -7,6 +7,8 @@ pandas>=2.2.0
 xgboost>=2.1.0
 lightgbm>=4.5.0
 scikit-learn>=1.5.2
+torch==2.5.1
 
 openpyxl>=3.1.5
 python-dotenv>=1.0.0
+requests>=2.31.0