fix: 修复WorkerConfig配置类.env文件读取问题

- 添加缺失的cf_kv_namespace_id字段
- 明确配置env_file=".env"以确保正确读取环境变量
- 更新gitignore忽略__pycache__目录

.gitignore

@@ -5,4 +5,5 @@
 .venv
 tests/*
 !tests/**/*.py
-tests/generate_appendix.py
+tests/generate_appendix.py
+__pycache__

src/BowongModalFunctions/models/settings/cluster.py

@@ -33,7 +33,12 @@ class WorkerConfig(BaseSettings):
 
     api_version: str = Field(default="0.1.7", description="API接口版本")
     api_server_token: str = Field(default="bowong7777", description="固定的API调用Bearer Token")
+    cf_kv_namespace_id: Optional[str] = Field(default=None, description="Cloudflare KV Namespace ID")
 
-    modal_config: Any = SettingsConfigDict(json_schema_extra={
-        "description": "可通过本地环境变量加载对应Field, 不区分大小写, Modal创建App的Image时可通过dotenv加载指定.env文件写入到Docker Image的系统变量",
-    })
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        env_file_encoding="utf-8",
+        json_schema_extra={
+            "description": "可通过本地环境变量加载对应Field, 不区分大小写, Modal创建App的Image时可通过dotenv加载指定.env文件写入到Docker Image的系统变量",
+        }
+    )