refactor(channels): hide internal channel types

src/channels/chat-meta.ts

@@ -13,8 +13,6 @@ function getChatChannelMetaById(): Record<ChatChannelId, ChatChannelMeta> {
   return chatChannelMetaCache;
 }
 
-export type { ChatChannelMeta };
-
 /**
  * Lists built-in chat channel metadata in configured display order.
  */

src/channels/message/send.ts

@@ -43,13 +43,13 @@ export type DurableMessageBatchSendParams = Omit<
   previousReceipt?: MessageReceipt;
 };
 
-export type DurableMessageSuppressionReason =
+type DurableMessageSuppressionReason =
   | OutboundPayloadDeliverySuppressionReason
   | "no_visible_result";
 
-export type DurableMessageFailureStage = "platform_send" | "queue" | "unknown";
+type DurableMessageFailureStage = "platform_send" | "queue" | "unknown";
 
-export type DurableMessagePayloadDeliveryOutcome =
+type DurableMessagePayloadDeliveryOutcome =
   | {
       index: number;
       status: "sent";
@@ -104,8 +104,6 @@ export type DurableMessageBatchSendResult =
       payloadOutcomes?: DurableMessagePayloadDeliveryOutcome[];
     };
 
-export type DurableMessageDeliveryOutcome = DurableMessageBatchSendResult;
-
 const neverAbortedSignal = new AbortController().signal;
 
 function toDurableMessageIntent(

src/channels/plugins/package-state-probes.ts

@@ -39,7 +39,7 @@ type ChannelPackageStateMetadata = {
 /**
  * Metadata keys that can declare a lightweight package-state checker.
  */
-export type ChannelPackageStateMetadataKey = "configuredState" | "persistedAuthState";
+type ChannelPackageStateMetadataKey = "configuredState" | "persistedAuthState";
 
 const log = createSubsystemLogger("channels");
 const sourcePackageStateLoaderCache: PluginModuleLoaderCache = new Map();

src/channels/status/read-model.ts

@@ -10,7 +10,7 @@ export type RuntimeChannelStatusPayload = {
   channelAccounts?: unknown;
 };
 
-export type RuntimeChannelAccount = Record<string, unknown>;
+type RuntimeChannelAccount = Record<string, unknown>;
 
 const CREDENTIAL_STATUS_KEYS = [
   "tokenStatus",

src/channels/thread-bindings-policy.ts

@@ -46,7 +46,7 @@ export type ThreadBindingSpawnPolicy = {
 };
 
 /** Starting transcript mode for a spawned thread-bound session. */
-export type ThreadBindingSpawnContext = "isolated" | "fork";
+type ThreadBindingSpawnContext = "isolated" | "fork";
 
 function normalizeChannelId(value: string | undefined | null): string {
   return normalizeLowercaseStringOrEmpty(value);