chore: use monorepo organization

packages/server/migrations/1603886141913-coupon-codes.js

@@ -0,0 +1,19 @@
+var db = require('./db')
+
+exports.up = function (next) {
+  const sql =
+    [
+      `CREATE TABLE coupons (
+        id UUID PRIMARY KEY,
+        code TEXT NOT NULL,
+        discount SMALLINT NOT NULL,
+        soft_deleted BOOLEAN DEFAULT false )`,
+      `CREATE UNIQUE INDEX uq_code ON coupons (code) WHERE NOT soft_deleted`
+    ]
+
+  db.multi(sql, next)
+}
+
+exports.down = function (next) {
+  next()
+}