Add endpoints for tags

emgauwa-lib/src/db/schedules.rs

@@ -77,6 +77,14 @@ impl DbSchedule {
 			ScheduleUid::Any(_) => Ok(filter_uid),
 		}?;
 
+		if sqlx::query_scalar!("SELECT 1 FROM schedules WHERE uid = ?", filter_uid)
+			.fetch_optional(conn.deref_mut())
+			.await?
+			.is_none()
+		{
+			return Err(DatabaseError::NotFound);
+		}
+
 		sqlx::query!("DELETE FROM schedules WHERE uid = ?", filter_uid)
 			.execute(conn.deref_mut())
 			.await