🔧 Added timezone configuration item.

src/aioarxiv/config.py

@@ -8,15 +8,21 @@ class ArxivConfig(BaseSettings):
     """arXiv API 配置类"""
 
     base_url: str = Field(
-        default="http://export.arxiv.org/api/query", description="arXiv API 基础URL"
+        default="http://export.arxiv.org/api/query",
+        description="arXiv API 基础URL",
     )
     timeout: float = Field(default=30.0, description="请求超时时间(秒)", gt=0)
+    timezone: str = Field(default="Asia/Shanghai", description="时区")
     max_retries: int = Field(default=3, description="最大重试次数", ge=0)
     rate_limit_calls: int = Field(
-        default=5, description="速率限制窗口内的最大请求数", ge=0
+        default=5,
+        description="速率限制窗口内的最大请求数",
+        ge=0,
     )
     rate_limit_period: float = Field(
-        default=1.0, description="速率限制窗口期(秒)", ge=0
+        default=1.0,
+        description="速率限制窗口期(秒)",
+        ge=0,
     )
     max_concurrent_requests: int = Field(default=5, description="最大并发请求数")
     proxy: Optional[str] = Field(default=None, description="HTTP/HTTPS代理URL")