fix: allow v02 gateway protocol environment

internal/protocol/index.mjs

@@ -1,4 +1,6 @@
 export const ENVIRONMENT_DEV = "dev";
+export const ENVIRONMENT_V02 = "v02";
+export const PROTOCOL_ENVIRONMENTS = Object.freeze([ENVIRONMENT_DEV, ENVIRONMENT_V02]);
 export const DEV_ENDPOINT = "http://74.48.78.17:16667";
 export const DEV_FRONTEND_ENDPOINT = "http://74.48.78.17:16666";
 export const JSON_RPC_VERSION = "2.0";
@@ -307,6 +309,10 @@ export function isFrozenServiceId(serviceId) {
   return SERVICE_IDS.includes(serviceId);
 }
 
+export function isProtocolEnvironment(environment) {
+  return PROTOCOL_ENVIRONMENTS.includes(environment);
+}
+
 export function isProtocolId(value) {
   return typeof value === "string" && protocolIdPattern.test(value);
 }
@@ -321,7 +327,7 @@ export function validateMeta(meta) {
   if (!isFrozenServiceId(meta.serviceId)) {
     throw new Error(`unknown serviceId ${JSON.stringify(meta.serviceId)}`);
   }
-  if (meta.environment !== ENVIRONMENT_DEV) {
+  if (!isProtocolEnvironment(meta.environment)) {
     throw new Error(`unsupported environment ${JSON.stringify(meta.environment)}`);
   }
 }
@@ -445,8 +451,8 @@ function assertProtocolField(kind, field, value) {
   if (timestampFieldNames.has(field) && Number.isNaN(Date.parse(value))) {
     throw new Error(`${kind}.${field} must be an RFC 3339 timestamp`);
   }
-  if (field === "environment" && value !== ENVIRONMENT_DEV) {
-    throw new Error(`${kind}.environment must be ${ENVIRONMENT_DEV}`);
+  if (field === "environment" && !isProtocolEnvironment(value)) {
+    throw new Error(`${kind}.environment must be one of ${PROTOCOL_ENVIRONMENTS.join(", ")}`);
   }
   if (field === "serviceId" && !isFrozenServiceId(value)) {
     throw new Error(`${kind}.serviceId is not a frozen service id`);