refactor: hide gateway helper internals

src/gateway/client-start-readiness.ts

@@ -11,7 +11,7 @@ export type GatewayClientStartReadinessOptions = {
   signal?: AbortSignal;
 };
 
-export function resolveGatewayClientStartReadinessTimeoutMs(
+function resolveGatewayClientStartReadinessTimeoutMs(
   options: GatewayClientStartReadinessOptions = {},
 ): number {
   if (typeof options.timeoutMs === "number" && Number.isFinite(options.timeoutMs)) {

src/gateway/http-utils.ts

@@ -36,7 +36,7 @@ export {
 export const OPENCLAW_MODEL_ID = "openclaw";
 export const OPENCLAW_DEFAULT_MODEL_ID = "openclaw/default";
 
-export function resolveAgentIdFromHeader(req: IncomingMessage): string | undefined {
+function resolveAgentIdFromHeader(req: IncomingMessage): string | undefined {
   const raw =
     normalizeOptionalString(getHeader(req, "x-openclaw-agent-id")) ||
     normalizeOptionalString(getHeader(req, "x-openclaw-agent")) ||
@@ -126,7 +126,7 @@ export function resolveAgentIdForRequest(params: {
   return fromModel ?? resolveDefaultAgentId(cfg);
 }
 
-export function resolveSessionKey(params: {
+function resolveSessionKey(params: {
   req: IncomingMessage;
   agentId: string;
   user?: string | undefined;

src/gateway/model-pricing-cache.ts

@@ -1283,14 +1283,6 @@ export function startGatewayModelPricingRefresh(params: {
   };
 }
 
-export function getGatewayModelPricingCacheMeta(): {
-  cachedAt: number;
-  ttlMs: number;
-  size: number;
-} {
-  return { ...getGatewayModelPricingCacheMetaState(), ttlMs: CACHE_TTL_MS };
-}
-
 export function __resetGatewayModelPricingCacheForTest(): void {
   clearGatewayModelPricingCacheState();
   clearRefreshTimer();

src/gateway/protocol/connect-error-details.ts

@@ -277,7 +277,7 @@ export function buildPairingConnectErrorMessage(
     : "pairing required";
 }
 
-export function buildPairingConnectRemediationHint(
+function buildPairingConnectRemediationHint(
   reason: ConnectPairingRequiredReason | undefined,
 ): string {
   return reason