fix(avatar): 修复群成员拉取他人头像 403 及补充 avatar_url 回填规则

server/im_http.go

@@ -7439,13 +7439,15 @@ func forwardTargetPayload(sub types.Subscription) map[string]any {
 	default:
 		return nil
 	}
-	return map[string]any{
+	target := map[string]any{
 		"topic":               sub.Topic,
 		"type":                topicType,
 		"display_name":        imDisplayNameFromPublic(sub.GetPublic(), sub.Topic),
 		"avatar_file_id":      imAvatarFileIDFromPublic(sub.GetPublic()),
 		"can_receive_forward": true,
 	}
+	applyAvatarURL(target)
+	return target
 }
 
 func forwardTargetMatches(topic, displayName, query string) bool {
@@ -7643,7 +7645,7 @@ func groupBusinessMemberPayload(member types.GroupMember, remark string) map[str
 }
 
 func maskIMGroupMemberProfileEntrypoint(data map[string]any) {
-	for _, key := range []string{"avatar_file_id", "public_account", "signature", "gender", "region"} {
+	for _, key := range []string{"avatar_file_id", "avatar_url", "public_account", "signature", "gender", "region"} {
 		delete(data, key)
 	}
 	data["can_add"] = false