chore: initial commit — leaudit-platform project skeleton

17-table PostgreSQL schema with full Chinese column comments,
FastAPI project structure (admin/common/modules),
DSL rule files, and schema migration scripts.

fastapi_admin/config/_settings.py

@@ -0,0 +1,102 @@
+"""Pydantic Settings 定义。
+
+每个 Settings 类对应 app.toml 中的一个 [SECTION]。
+字段名 = SECTION_KEY（TOML 展平后的环境变量名）。
+"""
+
+from __future__ import annotations
+
+from pydantic_settings import BaseSettings
+
+
+class _Base(BaseSettings):
+    """所有 Settings 的基类。"""
+    model_config = {"env_file": None, "extra": "ignore"}
+
+
+class AppSettings(_Base):
+    """应用基础配置 [APP]。"""
+    APP_NAME: str = "LeAudit Platform"
+    APP_HOST: str = "0.0.0.0"
+    APP_PORT: int = 8000
+    APP_CORS_ORIGINS: str = "*"
+
+
+class JwtSettings(_Base):
+    """JWT 配置 [JWT]。"""
+    JWT_SECRET_KEY: str = ""
+    JWT_ACCESS_TOKEN_EXPIRE_HOURS: int = 24
+    JWT_ALGORITHM: str = "HS256"
+
+
+class DbSettings(_Base):
+    """数据库配置 [DB]。"""
+    DB_HOST: str = "localhost"
+    DB_PORT: int = 5432
+    DB_NAME: str = "leaudit"
+    DB_USER: str = "postgres"
+    DB_PASSWORD: str = ""
+
+    @property
+    def ASYNCPG_DATABASE_URL(self) -> str:
+        """动态构建 asyncpg 连接 URL。"""
+        return (
+            f"postgresql+asyncpg://{self.DB_USER}:{self.DB_PASSWORD}"
+            f"@{self.DB_HOST}:{self.DB_PORT}/{self.DB_NAME}"
+        )
+
+
+class RedisSettings(_Base):
+    """Redis 配置 [REDIS]。"""
+    REDIS_HOST: str = "localhost"
+    REDIS_PORT: int = 6379
+    REDIS_DB: int = 0
+    REDIS_PASSWORD: str = ""
+
+
+class OssSettings(_Base):
+    """OSS 对象存储配置 [OSS]。"""
+    OSS_ENDPOINT: str = ""
+    OSS_ACCESS_KEY: str = ""
+    OSS_SECRET_KEY: str = ""
+    OSS_BUCKET: str = "leaudit"
+    OSS_REGION: str = ""
+
+
+class LlmSettings(_Base):
+    """LLM 配置 [LLM]。"""
+    LLM_BASE_URL: str = ""
+    LLM_MODEL: str = ""
+    LLM_API_KEY: str = ""
+
+
+class VlmSettings(_Base):
+    """VLM 配置 [VLM]。"""
+    VLM_BASE_URL: str = ""
+    VLM_MODEL: str = ""
+
+
+class OcrSettings(_Base):
+    """OCR 配置 [OCR]。"""
+    OCR_BASE_URL: str = ""
+    OCR_TIMEOUT: int = 300
+
+
+class LeauditSettings(_Base):
+    """LeAudit 引擎配置 [LEAUDIT]。"""
+    LEAUDIT_RULES_DIR: str = "rules"
+    LEAUDIT_RESCUE_MODE: str = "auto"
+    LEAUDIT_LLM_MAX_CONCURRENCY: int = 5
+    LEAUDIT_VLM_MAX_CONCURRENCY: int = 3
+
+
+# 实例化所有 Settings
+app = AppSettings()
+jwt = JwtSettings()
+db = DbSettings()
+redis = RedisSettings()
+oss = OssSettings()
+llm = LlmSettings()
+vlm = VlmSettings()
+ocr = OcrSettings()
+leaudit = LeauditSettings()