Stats table migration

migrations/20230730134827_stats.sql

@@ -0,0 +1,9 @@
+CREATE TABLE stat (
+    `id` BIGINT NOT NULL AUTO_INCREMENT,
+    `utc_time` DATETIME NOT NULL DEFAULT NOW(),
+    `type` ENUM('reminder_sent', 'reminder_failed'),
+    `reminder_id` INT UNSIGNED,
+    `message` TEXT,
+
+    PRIMARY KEY (`id`)
+);