chore: improve code layout a bit

main.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 )
 
+// ── Type Definitions ─────────────────────────────────────────────
 type Configuration struct {
 	BackendUrl    string
 	Secret        string
@@ -24,10 +25,14 @@ type requestBody struct {
 	ProductType string `json:"type"`
 }
 
+// ── Globals ──────────────────────────────────────────────────────
 var conf *Configuration
 var usingStubs bool
 var failCountSinceLastSuccess int
 
+// ── Functions ────────────────────────────────────────────────────
+
+// Initialize the SDK, specifying the configuration
 func Init(config Configuration) {
 	conf = &config
 	usingStubs = false