feat: backend service

integration/json_helpers_test.go

@@ -0,0 +1,9 @@
+package integration_test
+
+import "encoding/json"
+
+// jsonUnmarshal is a tiny indirection so other test files can decode
+// without importing encoding/json each time.
+func jsonUnmarshal(raw []byte, v any) error {
+	return json.Unmarshal(raw, v)
+}