refactor: make Talk consultation aliases private (#184732)

Keep the three owner-local Talk consultation aliases private while preserving the existing Gateway owner and options contracts and runtime behavior.

Author: shakkernerd

src/gateway/talk/client-agent-consult.types.ts

@@ -21,15 +21,15 @@ export type TalkAgentConsultRequest = Parameters<RealtimeVoiceAgentConsultRunner
 
 export type TalkAgentConsultSource = "tool-call" | "native-delegation";
 
-export type TalkAgentConsultLifecycleMethods = {
+type TalkAgentConsultLifecycleMethods = {
   adoptCompletionClaims?: () => void;
   claimAppend?: () => boolean;
   claimFailureAppend?: () => boolean;
   revokeRequesterFinal?: () => void;
   steer?: RealtimeVoiceAgentConsultRunner;
 };
 
-export type LifecycleBoundTalkAgentConsult = ((
+type LifecycleBoundTalkAgentConsult = ((
   args: unknown,
   signal: AbortSignal,
   ready?: () => Promise<void>,
@@ -48,7 +48,7 @@ export type ReusableTalkAgentConsult = (
   sourceInput?: SessionControllerInput,
 ) => Promise<{ text: string }>;
 
-export type GatewayTalkAgentConsultRunner = (
+type GatewayTalkAgentConsultRunner = (
   request: TalkAgentConsultRequest,
 ) => ReturnType<RealtimeVoiceAgentConsultRunner>;