Add endpoints for tags

emgauwa-lib/src/db/controllers.rs

@@ -79,6 +79,14 @@ impl DbController {
 		conn: &mut PoolConnection<Sqlite>,
 		filter_uid: ControllerUid,
 	) -> Result<(), DatabaseError> {
+		if sqlx::query_scalar!("SELECT 1 FROM controllers WHERE uid = ?", filter_uid)
+			.fetch_optional(conn.deref_mut())
+			.await?
+			.is_none()
+		{
+			return Err(DatabaseError::NotFound);
+		}
+
 		sqlx::query!("DELETE FROM controllers WHERE uid = ?", filter_uid)
 			.execute(conn.deref_mut())
 			.await