move job scheduling to DB

backend/app/api/settings.py

@@ -31,6 +31,29 @@ async def get_or_create_extension_api_key(session: AsyncSession) -> str:
     return new_key
 
 
+async def get_setting_value(session: AsyncSession, key: str, default=None):
+    """Get a setting value from the database, falling back to defaults.
+
+    Args:
+        session: Database session
+        key: Setting key (e.g., 'download.schedule_interval')
+        default: Fallback if not in database or DEFAULT_SETTINGS
+
+    Returns:
+        The setting value
+    """
+    result = await session.execute(
+        select(Setting).where(Setting.key == key)
+    )
+    setting = result.scalar()
+
+    if setting:
+        return setting.value
+
+    # Fall back to DEFAULT_SETTINGS, then to provided default
+    return DEFAULT_SETTINGS.get(key, default)
+
+
 @bp.route("", methods=["GET"])
 async def get_all_settings():
     """Get all application settings."""