chore: complete clean Agent Desk source snapshot

web/lib/im-realtime.ts

@@ -0,0 +1,40 @@
+import { createWebSocketBaseUrl } from "@/lib/api/websocket"
+import { getCustomerSessionToken, type ImMessage } from "@/lib/api/im"
+import { readSupportChatRuntimeConfig } from "@/lib/sdk/runtime-config"
+import type {
+  RealtimeConversationPatch,
+  RealtimeMessageCreatedPayload,
+} from "@/lib/im-realtime-state"
+import type { AgentActivityEventPayload } from "@/lib/agent-activity-state"
+
+export type RealtimeAgentActivityPayload = AgentActivityEventPayload
+
+export type ImRealtimeEnvelope = {
+  type: string
+  topic?: string
+  data?: RealtimeMessageCreatedPayload<ImMessage> &
+    RealtimeConversationPatch &
+    RealtimeAgentActivityPayload & {
+      customerSessionToken?: string
+      expiresAt?: string
+    }
+  payload?: RealtimeMessageCreatedPayload<ImMessage> &
+    RealtimeConversationPatch &
+    RealtimeAgentActivityPayload & {
+      customerSessionToken?: string
+      expiresAt?: string
+    }
+}
+
+export function createImRealtimeConnection() {
+  const config = readSupportChatRuntimeConfig()
+  const apiBaseUrl = (config.apiBaseUrl || config.baseUrl || "").trim()
+  const baseUrl = apiBaseUrl
+    ? apiBaseUrl.replace(/^http/, "ws").replace(/\/$/, "")
+    : createWebSocketBaseUrl()
+  const channelId = encodeURIComponent(config.channelId || "")
+  const customerSessionToken = getCustomerSessionToken()
+  return new WebSocket(
+    `${baseUrl}/api/ws/open?channelId=${channelId}&customerSessionToken=${encodeURIComponent(customerSessionToken)}`
+  )
+}