fix: replace serial with uuid and remove incorrect promise handling

lib/cashbox-batches.js

@@ -13,8 +13,6 @@ function createCashboxBatch (rec) {
     const newBatch = await t.oneOrNone(sql, [rec.deviceId])
     return t.oneOrNone(sql2, [newBatch.id, newBatch.device_id])
   })
-    .then(data => data)
-    .catch(error => error)
 }
 
 module.exports = { createCashboxBatch }

migrations/1616528363530-add_cashbox_batches.js

@@ -3,7 +3,7 @@ var db = require('./db')
 exports.up = function (next) {
   var sqls = [
     `create table cashbox_batches (
-      id serial PRIMARY KEY,
+      id uuid PRIMARY KEY,
       device_id text REFERENCES devices (device_id),
       created timestamptz NOT NULL default now()
     )`,