Split authentication & newsletter subscription

resources/sql/20260808_account_password.sql

@@ -0,0 +1,7 @@
+ALTER TABLE `users`
+	ADD COLUMN `password` VARCHAR(255) NOT NULL DEFAULT '' AFTER `email`,
+	ADD COLUMN `token` VARCHAR(4096) AFTER `password`,
+	ADD COLUMN `token_exp` TIMESTAMP DEFAULT 0 AFTER `token`;
+
+ALTER TABLE `users`
+	CHANGE COLUMN `active` `subscribed` BOOLEAN DEFAULT 0;