chore: use monorepo organization

migrations/025-create_trades.js

@@ -1,20 +0,0 @@
-var db = require('./db')
-
-exports.up = function (next) {
-  var sql = [
-    "create type trade_type as enum ('buy', 'sell')",
-    `create table trades (
-      id serial PRIMARY KEY,
-      type trade_type not null,
-      crypto_code text not null,
-      crypto_atoms bigint not null,
-      fiat_code text not null,
-      created timestamptz NOT NULL default now()
-    )`
-  ]
-  db.multi(sql, next)
-}
-
-exports.down = function (next) {
-  next()
-}