init commit

store/migration/mysql/0.17/00__inbox.sql

@@ -0,0 +1,9 @@
+-- inbox
+CREATE TABLE `inbox` (
+  `id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
+  `created_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `sender_id` INT NOT NULL,
+  `receiver_id` INT NOT NULL,
+  `status` TEXT NOT NULL,
+  `message` TEXT NOT NULL
+);

store/migration/mysql/0.17/01__delete_activity.sql

@@ -0,0 +1 @@
+DELETE FROM `activity`;