feat: resume cold session from event logs

core/frontend/src/api/sessions.ts

@@ -1,5 +1,6 @@
 import { api } from "./client";
 import type {
+  AgentEvent,
   LiveSession,
   LiveSessionDetail,
   SessionSummary,
@@ -77,6 +78,10 @@ export const sessionsApi = {
   queenMessages: (sessionId: string) =>
     api.get<{ messages: Message[]; session_id: string }>(`/sessions/${sessionId}/queen-messages`),
 
+  /** Get persisted eventbus log for a session (works for cold sessions — used for full UI replay). */
+  eventsHistory: (sessionId: string) =>
+    api.get<{ events: AgentEvent[]; session_id: string }>(`/sessions/${sessionId}/events/history`),
+
   /** List all queen sessions on disk — live + cold (post-restart). */
   history: () =>
     api.get<{ sessions: Array<{ session_id: string; cold: boolean; live: boolean; has_messages: boolean; created_at: number; agent_name?: string | null; agent_path?: string | null }> }>("/sessions/history"),