add LICENSE.

Signed-off-by: Kevin Zhang <zhangjinnan@hotmail.com>

LICENSE

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+木兰宽松许可证，第2版
+
+木兰宽松许可证，第2版
+
+2020年1月 http://license.coscl.org.cn/MulanPSL2
+
+您对“软件”的复制、使用、修改及分发受木兰宽松许可证，第2版（“本许可证”）的如下条款的约束：
+
+0.   定义
+
+“软件” 是指由“贡献”构成的许可在“本许可证”下的程序和相关文档的集合。
+
+“贡献” 是指由任一“贡献者”许可在“本许可证”下的受版权法保护的作品。
+
+“贡献者” 是指将受版权法保护的作品许可在“本许可证”下的自然人或“法人实体”。
+
+“法人实体” 是指提交贡献的机构及其“关联实体”。
+
+“关联实体” 是指，对“本许可证”下的行为方而言，控制、受控制或与其共同受控制的机构，此处的控制是
+指有受控方或共同受控方至少50%直接或间接的投票权、资金或其他有价证券。
+
+1.   授予版权许可
+
+每个“贡献者”根据“本许可证”授予您永久性的、全球性的、免费的、非独占的、不可撤销的版权许可，您可
+以复制、使用、修改、分发其“贡献”，不论修改与否。
+
+2.   授予专利许可
+
+每个“贡献者”根据“本许可证”授予您永久性的、全球性的、免费的、非独占的、不可撤销的（根据本条规定
+撤销除外）专利许可，供您制造、委托制造、使用、许诺销售、销售、进口其“贡献”或以其他方式转移其“贡
+献”。前述专利许可仅限于“贡献者”现在或将来拥有或控制的其“贡献”本身或其“贡献”与许可“贡献”时的“软
+件”结合而将必然会侵犯的专利权利要求，不包括对“贡献”的修改或包含“贡献”的其他结合。如果您或您的“
+关联实体”直接或间接地，就“软件”或其中的“贡献”对任何人发起专利侵权诉讼（包括反诉或交叉诉讼）或
+其他专利维权行动，指控其侵犯专利权，则“本许可证”授予您对“软件”的专利许可自您提起诉讼或发起维权
+行动之日终止。
+
+3.   无商标许可
+
+“本许可证”不提供对“贡献者”的商品名称、商标、服务标志或产品名称的商标许可，但您为满足第4条规定
+的声明义务而必须使用除外。
+
+4.   分发限制
+
+您可以在任何媒介中将“软件”以源程序形式或可执行形式重新分发，不论修改与否，但您必须向接收者提供“
+本许可证”的副本，并保留“软件”中的版权、商标、专利及免责声明。
+
+5.   免责声明与责任限制
+
+“软件”及其中的“贡献”在提供时不带任何明示或默示的担保。在任何情况下，“贡献者”或版权所有者不对
+任何人因使用“软件”或其中的“贡献”而引发的任何直接或间接损失承担责任，不论因何种原因导致或者基于
+何种法律理论，即使其曾被建议有此种损失的可能性。
+
+6.   语言
+
+“本许可证”以中英文双语表述，中英文版本具有同等法律效力。如果中英文版本存在任何冲突不一致，以中文
+版为准。
+
+条款结束
+
+如何将木兰宽松许可证，第2版，应用到您的软件
+
+如果您希望将木兰宽松许可证，第2版，应用到您的新软件，为了方便接收者查阅，建议您完成如下三步：
+
+1， 请您补充如下声明中的空白，包括软件名、软件的首次发表年份以及您作为版权人的名字；
+
+2， 请您在软件包的一级目录下创建以“LICENSE”为名的文件，将整个许可证文本放入该文件中；
+
+3， 请将如下声明文本放入每个源文件的头部注释中。
+
+Copyright (c) [2025] [CCF ODTC AI Infra]
+[Software Name] is licensed under Mulan PSL v2.
+You can use this software according to the terms and conditions of the Mulan
+PSL v2.
+You may obtain a copy of Mulan PSL v2 at:
+         http://license.coscl.org.cn/MulanPSL2
+THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+See the Mulan PSL v2 for more details.
+
+Mulan Permissive Software License，Version 2
+
+Mulan Permissive Software License，Version 2 (Mulan PSL v2)
+
+January 2020 http://license.coscl.org.cn/MulanPSL2
+
+Your reproduction, use, modification and distribution of the Software shall
+be subject to Mulan PSL v2 (this License) with the following terms and
+conditions:
+
+0. Definition
+
+Software means the program and related documents which are licensed under
+this License and comprise all Contribution(s).
+
+Contribution means the copyrightable work licensed by a particular
+Contributor under this License.
+
+Contributor means the Individual or Legal Entity who licenses its
+copyrightable work under this License.
+
+Legal Entity means the entity making a Contribution and all its
+Affiliates.
+
+Affiliates means entities that control, are controlled by, or are under
+common control with the acting entity under this License, ‘control’ means
+direct or indirect ownership of at least fifty percent (50%) of the voting
+power, capital or other securities of controlled or commonly controlled
+entity.
+
+1. Grant of Copyright License
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to you a perpetual, worldwide, royalty-free, non-exclusive,
+irrevocable copyright license to reproduce, use, modify, or distribute its
+Contribution, with modification or not.
+
+2. Grant of Patent License
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to you a perpetual, worldwide, royalty-free, non-exclusive,
+irrevocable (except for revocation under this Section) patent license to
+make, have made, use, offer for sale, sell, import or otherwise transfer its
+Contribution, where such patent license is only limited to the patent claims
+owned or controlled by such Contributor now or in future which will be
+necessarily infringed by its Contribution alone, or by combination of the
+Contribution with the Software to which the Contribution was contributed.
+The patent license shall not apply to any modification of the Contribution,
+and any other combination which includes the Contribution. If you or your
+Affiliates directly or indirectly institute patent litigation (including a
+cross claim or counterclaim in a litigation) or other patent enforcement
+activities against any individual or entity by alleging that the Software or
+any Contribution in it infringes patents, then any patent license granted to
+you under this License for the Software shall terminate as of the date such
+litigation or activity is filed or taken.
+
+3. No Trademark License
+
+No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements in section 4.
+
+4. Distribution Restriction
+
+You may distribute the Software in any medium with or without modification,
+whether in source or executable forms, provided that you provide recipients
+with a copy of this License and retain copyright, patent, trademark and
+disclaimer statements in the Software.
+
+5. Disclaimer of Warranty and Limitation of Liability
+
+THE SOFTWARE AND CONTRIBUTION IN IT ARE PROVIDED WITHOUT WARRANTIES OF ANY
+KIND, EITHER EXPRESS OR IMPLIED. IN NO EVENT SHALL ANY CONTRIBUTOR OR
+COPYRIGHT HOLDER BE LIABLE TO YOU FOR ANY DAMAGES, INCLUDING, BUT NOT
+LIMITED TO ANY DIRECT, OR INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING
+FROM YOUR USE OR INABILITY TO USE THE SOFTWARE OR THE CONTRIBUTION IN IT, NO
+MATTER HOW IT’S CAUSED OR BASED ON WHICH LEGAL THEORY, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGES.
+
+6. Language
+
+THIS LICENSE IS WRITTEN IN BOTH CHINESE AND ENGLISH, AND THE CHINESE VERSION
+AND ENGLISH VERSION SHALL HAVE THE SAME LEGAL EFFECT. IN THE CASE OF
+DIVERGENCE BETWEEN THE CHINESE AND ENGLISH VERSIONS, THE CHINESE VERSION
+SHALL PREVAIL.
+
+END OF THE TERMS AND CONDITIONS
+
+How to Apply the Mulan Permissive Software License，Version 2
+(Mulan PSL v2) to Your Software
+
+To apply the Mulan PSL v2 to your work, for easy identification by
+recipients, you are suggested to complete following three steps:
+
+i. Fill in the blanks in following statement, including insert your software
+name, the year of the first publication of your software, and your name
+identified as the copyright owner;
+
+ii. Create a file named "LICENSE" which contains the whole context of this
+License in the first directory of your software package;
+
+iii. Attach the statement to the appropriate annotated syntax at the
+beginning of each source file.
+
+Copyright (c) [2025] [CCF ODTC AI Infra]
+[Software Name] is licensed under Mulan PSL v2.
+You can use this software according to the terms and conditions of the Mulan
+PSL v2.
+You may obtain a copy of Mulan PSL v2 at:
+         http://license.coscl.org.cn/MulanPSL2
+THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+See the Mulan PSL v2 for more details.