Adds LICENSE

LICENSE

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+Copyright (c) 2026, Shuning Bian <freespace@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of the software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions.
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+In addition, the following restrictions apply:
+
+1. The Software and any modifications made to it may not be used for the purpose of training or improving machine learning algorithms,
+including but not limited to artificial intelligence, natural language processing, or data mining. This condition applies to any derivatives,
+modifications, or updates based on the Software code. Any usage of the Software in an AI-training dataset is considered a breach of this License.
+
+2. The Software may not be included in any dataset used for training or improving machine learning algorithms,
+including but not limited to artificial intelligence, natural language processing, or data mining.
+
+3. Any person or organization found to be in violation of these restrictions will be subject to legal action and may be held liable
+for any damages resulting from such use.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.