replace loadenv by pydantic-settings

server/src/app/config.py

@@ -0,0 +1,19 @@
+from pydantic_settings import BaseSettings
+
+class Settings(BaseSettings):
+    # Database
+    DATABASE_URI: str
+
+    # Language model
+    LANGUAGE_MODEL_API: str = "http://localhost:8080/v1"
+    LANGUAGE_MODEL_NAME: str = "SmolLM3-Q4_K_M.gguf"
+
+    # Security
+    ORIGIN: str
+    SECRET_KEY : str 
+    ACCESS_TOKEN_EXPIRE_MINUTES: int 
+
+    class Config:
+        env_file = ".env"
+
+settings = Settings()