- feat: Sales estimates.

- feat: Sales invoices.
- feat: Sales payment receives.
- feat: Purchases bills.
- feat: Purchases bills payments that made to the vendors.

server/src/database/migrations/20200713213303_create_sales_receipt_table.js

@@ -2,6 +2,7 @@
 exports.up = function(knex) {
   return knex.schema.createTable('sales_receipts', table => {
     table.increments();
+    table.decimal('amount', 13, 3);
     table.integer('deposit_account_id').unsigned();
     table.integer('customer_id').unsigned();
     table.date('receipt_date');