feat: 修复代码审核报告问题

config.py

@@ -0,0 +1,66 @@
+"""配置管理 - 环境变量 + 默认值"""
+import os
+from pathlib import Path
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    """应用配置"""
+
+    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")
+
+    # RSSKeeper 连接
+    RSSKEEPER_BASE_URL: str = "http://localhost:7329"
+
+    # LLM API（兼容 OpenAI 格式）
+    OPENAI_API_KEY: str = ""
+    OPENAI_BASE_URL: str = "https://api.openai.com/v1"
+    OPENAI_MODEL: str = "gpt-4o-mini"
+    OPENAI_TIMEOUT: int = 60
+    OPENAI_MAX_RETRIES: int = 3
+
+    # dataClean 数据目录
+    DATA_DIR: Path = Path("/app/data")
+    DATABASE_URL: str = "/app/data/dataclean.db"
+
+    # 简报输出目录
+    BRIEF_OUTPUT_DIR: Path = Path("/app/data/briefs")
+
+    # 调度时间（分钟）
+    SUMMARIZE_INTERVAL_MINUTES: int = 60
+    TAG_SCORE_INTERVAL_MINUTES: int = 1440
+    DAILY_BRIEF_HOUR: int = 8
+    DAILY_BRIEF_MINUTE: int = 0
+
+    # 去重阈值
+    TITLE_SIMILARITY_THRESHOLD: float = 0.85
+    CONTENT_SIMILARITY_THRESHOLD: float = 0.80
+
+    # 摘要长度
+    MAX_AI_SUMMARY_LENGTH: int = 300
+    MIN_ORIGINAL_SUMMARY_LENGTH: int = 100
+
+    # 每篇简报每个分类显示文章数
+    BRIEF_TOP_N_PER_CATEGORY: int = 10
+
+    # 日志级别
+    LOG_LEVEL: str = "INFO"
+
+    # Web UI / API 安全
+    # 为空时不启用 API Token 鉴权（仅建议在内网使用）；生产环境请设置强密码
+    API_TOKEN: str = ""
+    # CORS 允许来源，逗号分隔；生产环境请填写具体域名，如 "https://dataclean.example.com"
+    CORS_ALLOWED_ORIGINS: str = ""
+
+    @property
+    def database_path(self) -> str:
+        """返回 SQLite 数据库路径"""
+        return str(Path(self.DATABASE_URL))
+
+    @property
+    def brief_output_dir_path(self) -> Path:
+        """返回简报输出目录"""
+        return self.BRIEF_OUTPUT_DIR
+
+
+settings = Settings()