fix: avoid sessions_send timeouts

src/gateway/protocol/schema.ts

@@ -208,6 +208,7 @@ export const AgentParamsSchema = Type.Object(
     deliver: Type.Optional(Type.Boolean()),
     channel: Type.Optional(Type.String()),
     timeout: Type.Optional(Type.Integer({ minimum: 0 })),
+    lane: Type.Optional(Type.String()),
     idempotencyKey: NonEmptyString,
   },
   { additionalProperties: false },