feat: bootstrap dodo phase one

backend/config.py

@@ -0,0 +1,19 @@
+from functools import lru_cache
+
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    app_name: str = "dodo"
+    database_url: str = "postgresql+asyncpg://dodo:dodo@localhost:5432/dodo"
+    session_days: int = 30
+    cookie_secure: bool = False
+    trusted_proxies: str = ""
+    auto_create_schema: bool = False
+
+    model_config = SettingsConfigDict(env_prefix="DODO_", env_file=".env", extra="ignore")
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()