feat: add HTTP migration bridges and extensible API binding

cmd/go-omni/apigen/contractMetadata.go

@@ -140,6 +140,7 @@ func decorateDocument(doc map[string]any, spec *Spec) {
 			}
 		}
 		op := doc["paths"].(map[string]any)[strings.Join(parts, "/")].(map[string]any)[r.Method].(map[string]any)
+		decorateRequestOptions(op, r)
 		if r.ResponseFormat != "" {
 			op["x-omni-response"] = r.ResponseFormat
 		}