feat: new file

backend/app/settings.py

@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")
+
+    mysql_host: str
+    mysql_port: int = 3306
+    mysql_user: str
+    mysql_password: str
+    mysql_database: str
+
+    openai_api_key: str | None = None
+    openai_model: str = "gpt-4.1-mini"
+    openai_embed_model: str = "text-embedding-3-small"
+
+    milvus_host: str = "localhost"
+    milvus_port: int = 19530
+    milvus_collection: str = "products_v1"
+
+    app_env: str = "dev"
+    app_cors_origins: str = "http://localhost:3000"
+    debug_print_db_sample: bool = False
+    debug_db_sample_limit: int = 10
+    debug_db_sample_max_str_len: int = 120
+
+    @property
+    def mysql_url(self) -> str:
+        return (
+            f"mysql+pymysql://{self.mysql_user}:{self.mysql_password}"
+            f"@{self.mysql_host}:{self.mysql_port}/{self.mysql_database}?charset=utf8mb4"
+        )
+
+    @property
+    def cors_origins_list(self) -> list[str]:
+        return [o.strip() for o in self.app_cors_origins.split(",") if o.strip()]
+
+
+settings = Settings()
+