feat(types): add agent_session_stopped and agent_session_title_changed events (#2707)

Author: zimeg

.changeset/agent-session-events.md

@@ -0,0 +1,5 @@
+---
+"@slack/types": minor
+---
+
+feat(types): add [`agent_session_stopped`](https://docs.slack.dev/reference/events/agent_session_stopped) and [`agent_session_title_changed`](https://docs.slack.dev/reference/events/agent_session_title_changed) events

packages/types/src/events/agent.ts

@@ -0,0 +1,21 @@
+// https://docs.slack.dev/reference/events/agent_session_stopped
+export interface AgentSessionStoppedEvent {
+  type: 'agent_session_stopped';
+  channel: string;
+  user: string;
+  thread_ts: string;
+  streaming_message_ts: string[];
+  event_ts: string;
+}
+
+// https://docs.slack.dev/reference/events/agent_session_title_changed
+export interface AgentSessionTitleChangedEvent {
+  type: 'agent_session_title_changed';
+  channel: string;
+  user: string;
+  team_id: string;
+  thread_ts: string;
+  title: string;
+  previous_title?: string;
+  event_ts: string;
+}

packages/types/src/events/index.ts

@@ -1,3 +1,4 @@
+import type { AgentSessionStoppedEvent, AgentSessionTitleChangedEvent } from './agent';
 import type {
   AppContextChangedEvent,
   AppDeletedEvent,
@@ -88,6 +89,7 @@ import type {
 import type { TokensRevokedEvent } from './token';
 import type { UserChangeEvent, UserHuddleChangedEvent, UserProfileChangedEvent, UserStatusChangedEvent } from './user';
 
+export * from './agent';
 export * from './app';
 export * from './assistant';
 export * from './call';
@@ -121,6 +123,8 @@ export * from './user';
  * This is a discriminated union. The discriminant is the `type` property.
  */
 export type SlackEvent =
+  | AgentSessionStoppedEvent
+  | AgentSessionTitleChangedEvent
   | AppContextChangedEvent
   | AppDeletedEvent
   | AppHomeOpenedEvent