refactor(agent): expose mutable inbox state

packages/client/runtime/src/client/contract/session.ts

@@ -9,7 +9,7 @@
  */
 import type { ContentBlock } from '@deepseek-ai/dsh-llm/types'
 import type {
-  InboxItemId, QueueAction, RpcResult, SessionId,
+  MessageId, QueueAction, RpcResult, SessionId,
 } from '@deepseek-ai/dsh-client-connection/client'
 import type { ConversationSnapshot } from '../sessions/conversation.ts'
 import type { ObservableSnapshot } from './store.ts'
@@ -44,7 +44,7 @@ export interface ISession {
    * @param action - edit or remove operation.
    * @returns acceptance, or a business/transport error.
    */
-  updateQueue(itemId: InboxItemId, action: QueueAction): Promise<RpcResult<{ accepted: true }>>
+  updateQueue(itemId: MessageId, action: QueueAction): Promise<RpcResult<{ accepted: true }>>
   /**
    * Cancel the running turn.
    * @returns acceptance, or the business error.

packages/client/runtime/src/client/sessions/conversation.ts

@@ -7,7 +7,7 @@ import type { CommandId } from '@deepseek-ai/dsh-commands/brand'
 import type { ContentBlock } from '@deepseek-ai/dsh-llm/types'
 import type { TodoItem } from '@deepseek-ai/dsh-session/types'
 import type {
-  InboxItemId, RpcError, SessionId, ToolCallView, ToolResultView,
+  MessageId, RpcError, SessionId, ToolCallView, ToolResultView,
 } from '@deepseek-ai/dsh-client-connection/client'
 import type { PendingInteraction } from './pending.ts'
 export type { TodoItem }
@@ -218,7 +218,7 @@ export interface RunningToolCall {
 
 /** One independently addressable row from the transient queue snapshot. */
 export interface QueuedMessage {
-  readonly id: InboxItemId
+  readonly id: MessageId
   readonly preview: string
   /** Complete editable text; null when the message contains non-text blocks. */
   readonly text: string | null