From c8c330ea2dfadfe85ddee9a2cce9b02a6a312a27 Mon Sep 17 00:00:00 2001
From: biss <bishsh2006@outlook.com>
Date: Wed, 16 Sep 2026 22:13:32 +0800
Subject: [PATCH] Document checkin migration behavior

---
 drizzle/0001_add_checkin_type.sql | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drizzle/0001_add_checkin_type.sql b/drizzle/0001_add_checkin_type.sql
index 4ae2e1b..7255e32 100644
--- a/drizzle/0001_add_checkin_type.sql
+++ b/drizzle/0001_add_checkin_type.sql
@@ -1,2 +1,3 @@
 ALTER TABLE `progress` ADD `checkin_type` text NOT NULL DEFAULT 'normal';
 ALTER TABLE `progress` ADD `checked_at` text NOT NULL DEFAULT '';
+-- New check-ins populate checked_at in the application layer.