chore: Move factories and helpers to a better place (#4551)

* chore: Move factories and helpers to a better place

* align factory product variant

* fix factory cart

* add simple store fac

* fix tests

* fix tests

* fix

* fix cart seeder

integration-tests/environment-helpers/bootstrap-app.js

@@ -0,0 +1,26 @@
+const path = require("path")
+const express = require("express")
+const getPort = require("get-port")
+
+module.exports = {
+  bootstrapApp: async ({ cwd } = {}) => {
+    const app = express()
+
+    const loaders = require("@medusajs/medusa/dist/loaders").default
+
+    const { container, dbConnection } = await loaders({
+      directory: path.resolve(cwd || process.cwd()),
+      expressApp: app,
+      isTest: false,
+    })
+
+    const PORT = await getPort()
+
+    return {
+      container,
+      db: dbConnection,
+      app,
+      port: PORT,
+    }
+  },
+}