feat(sdk): add new admin APIs to Java SDK

- queryUserState
- kickUsers
- batchSendMessage
- adminSetMsgRead
- importMessages
- checkFriends
- modifyGroupMemberInfo

Also add FriendCheckResult and ImportMessageRequest models.

im-sdk/src/main/java/com/xuqm/im/sdk/XuqmImServerSdk.java

@@ -1030,6 +1030,93 @@ public final class XuqmImServerSdk {
         return response.data();
     }
 
+    public Map<String, Boolean> queryUserState(List<String> userIds) {
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("userIds", String.join(",", userIds));
+        ApiResponse<Map<String, Boolean>> response = request(
+                "GET",
+                buildUri("/api/im/admin/users/state", query),
+                null,
+                authorizedHeaders(),
+                new TypeReference<>() {}
+        );
+        return response.data();
+    }
+
+    public void kickUsers(String appId, List<String> userIds) {
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("appId", appId);
+        request(
+                "POST",
+                buildUri("/api/im/admin/users/kick", query),
+                Map.of("userIds", userIds),
+                authorizedHeaders(),
+                new TypeReference<ApiResponse<Void>>() {}
+        );
+    }
+
+    public List<ImMessage> batchSendMessage(String appId, List<String> toIds, String msgType, String content) {
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("appId", appId);
+        ApiResponse<List<ImMessage>> response = request(
+                "POST",
+                buildUri("/api/im/admin/messages/batch-send", query),
+                Map.of("toIds", toIds, "msgType", msgType, "content", content),
+                authorizedHeaders(),
+                new TypeReference<>() {}
+        );
+        return response.data();
+    }
+
+    public void adminSetMsgRead(String appId, String userId) {
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("appId", appId);
+        request(
+                "POST",
+                buildUri("/api/im/admin/messages/read", query),
+                Map.of("userId", userId),
+                authorizedHeaders(),
+                new TypeReference<ApiResponse<Void>>() {}
+        );
+    }
+
+    public List<ImMessage> importMessages(String appId, List<ImportMessageRequest> requests) {
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("appId", appId);
+        ApiResponse<List<ImMessage>> response = request(
+                "POST",
+                buildUri("/api/im/admin/messages/import", query),
+                requests,
+                authorizedHeaders(),
+                new TypeReference<>() {}
+        );
+        return response.data();
+    }
+
+    public List<FriendCheckResult> checkFriends(String appId, List<String> friendIds) {
+        Map<String, String> query = new LinkedHashMap<>();
+        query.put("appId", appId);
+        ApiResponse<List<FriendCheckResult>> response = request(
+                "POST",
+                buildUri("/api/im/friends/check", query),
+                Map.of("friendIds", friendIds),
+                authorizedHeaders(),
+                new TypeReference<>() {}
+        );
+        return response.data();
+    }
+
+    public GroupView modifyGroupMemberInfo(String groupId, String userId, String nickName) {
+        ApiResponse<GroupView> response = request(
+                "PUT",
+                buildUri("/api/im/groups/" + encode(groupId) + "/members/" + encode(userId) + "/info", appQuery()),
+                Map.of("nickName", nickName),
+                authorizedHeaders(),
+                new TypeReference<>() {}
+        );
+        return response.data();
+    }
+
     public void setConversationPinned(String targetId, String chatType, boolean pinned) {
         Map<String, String> query = appQuery();
         query.put("chatType", chatType);
@@ -1816,6 +1903,19 @@ public final class XuqmImServerSdk {
 
     public record RequestBatch(List<String> requestIds) {}
 
+    public record FriendCheckResult(String userId, boolean isFriend) {}
+
+    public record ImportMessageRequest(
+            String messageId,
+            String fromUserId,
+            String toId,
+            String chatType,
+            String msgType,
+            String content,
+            String status,
+            String createdAt
+    ) {}
+
     public static final class ImSdkException extends RuntimeException {
         public ImSdkException(String message) {
             super(message);