feat: Payment system with voucher cards.

feat: Design with inversion dependency injection architecture.
feat: Prettier http middleware.
feat: Re-write items categories with preferred accounts.

server/config/systemKnexfile.js

@@ -12,6 +12,9 @@ const configEnv = {
   migrations: {
     directory: config.system.migrations_dir,
   },
+  seeds: {
+    directory: config.system.seeds_dir,
+  },
   pool: { min: 0, max: 7 },
 };