feat: add configuration module with pydantic-settings

Made-with: Cursor

src/ntr_fetcher/config.py

@@ -0,0 +1,14 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    model_config = {"env_prefix": "NTR_"}
+
+    port: int = 8000
+    host: str = "127.0.0.1"
+    db_path: str = "./ntr_fetcher.db"
+    poll_interval_seconds: int = 3600
+    admin_token: str
+    soundcloud_user: str = "nicktherat"
+    show_day: int = 2
+    show_hour: int = 22