chore: complete clean Agent Desk source snapshot

web/lib/agent-activity-state.ts

@@ -0,0 +1,36 @@
+export type AgentActivityInfo = {
+  conversationId: number
+  stepCode: string
+  toolName?: string
+}
+
+export type AgentActivityEventPayload = {
+  conversationId?: number
+  stepCode?: string
+  toolName?: string
+  status?: string
+}
+
+export function resolveAgentActivityState(
+  current: AgentActivityInfo | null,
+  activeConversationId: number | undefined,
+  payload: AgentActivityEventPayload | null | undefined
+): AgentActivityInfo | null {
+  if (
+    !payload ||
+    !activeConversationId ||
+    !payload.conversationId ||
+    payload.conversationId !== activeConversationId ||
+    !payload.stepCode
+  ) {
+    return current
+  }
+  if (payload.status === "completed" || payload.status === "failed") {
+    return null
+  }
+  return {
+    conversationId: payload.conversationId,
+    stepCode: payload.stepCode,
+    ...(payload.toolName ? { toolName: payload.toolName } : {}),
+  }
+}