refactor: reorganize modules and add Linux build tooling

module/ec/order/test/summary/submit.http

@@ -0,0 +1,17 @@
+POST  http://127.0.0.1:12441/order.Summary/Submit
+content-type: application/json
+Authorization: {{BSM_TOKEN}}
+
+{
+    "address": {
+        "country": "Canada",
+        "province": "British Columbia",
+        "city": "Vancouver",
+        "area": "Downtown",
+        "detail": "777 Dunsmuir Street, 17th Floor",
+        "contact": "John Doe",
+        "phone": " +1 (555) 123-4567",
+        "email": "john.doe@example.com",
+        "zip_code": " V7Y 1K4"
+    }
+}