feat(im): add listFriends, addFriend, removeFriend to ImSDK

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/im/src/ImSDK.ts

@@ -424,6 +424,31 @@ export const ImSDK = {
     return ImSDK.sendMessage(toId, chatType, 'FILE', content)
   },
 
+  async listFriends(): Promise<string[]> {
+    const config = getConfig()
+    const res = await apiRequest<{ data?: string[] } | string[]>('/api/im/friends', {
+      params: { appId: config.appId },
+    })
+    if (Array.isArray(res)) return res
+    return (res as { data?: string[] }).data ?? []
+  },
+
+  async addFriend(friendId: string): Promise<void> {
+    const config = getConfig()
+    await apiRequest('/api/im/friends', {
+      method: 'POST',
+      params: { appId: config.appId, friendId },
+    })
+  },
+
+  async removeFriend(friendId: string): Promise<void> {
+    const config = getConfig()
+    await apiRequest(`/api/im/friends/${encodeURIComponent(friendId)}`, {
+      method: 'DELETE',
+      params: { appId: config.appId },
+    })
+  },
+
   disconnect(): void {
     client?.disconnect()
     client = null

packages/im/src/index.ts

@@ -1,5 +1,11 @@
 export { ImSDK } from './ImSDK'
 export type { ConversationData } from './ImSDK'
+import { ImSDK as _ImSDK } from './ImSDK'
+
+// Convenience named exports for friend APIs
+export const listFriends = (): Promise<string[]> => _ImSDK.listFriends()
+export const addFriend = (friendId: string): Promise<void> => _ImSDK.addFriend(friendId)
+export const removeFriend = (friendId: string): Promise<void> => _ImSDK.removeFriend(friendId)
 export { ImClient } from './ImClient'
 export { ImDatabase } from './db/ImDatabase'
 export type { MessageSearchParams } from './db/ImDatabase'

src/index.ts

@@ -10,6 +10,7 @@ export { ScaledImage } from '../packages/common/src'
 export { ImSDK } from '../packages/im/src'
 export { ImClient } from '../packages/im/src'
 export { uploadFile } from '../packages/im/src'
+export { listFriends, addFriend, removeFriend } from '../packages/im/src'
 export type {
   ImMessage, ImGroup, ChatType, MsgType, MsgStatus,
   ImEventListener, SendMessageParams,