style: preserve legacy license links

恢复历史文件原有的 jd-opensource LICENSE 链接。

仅本次新增的 DFlash2 文件使用 xLLM-AI LICENSE 链接，避免无关的批量头部修改。

Author: pjgao

tests/core/framework/kv_cache/cache_layout_builder_test.cpp

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

tests/core/framework/kv_cache_transfer/reshard_planner_test.cpp

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache/cache_layout_builder.cpp

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache/cache_layout_builder.h

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache/logical_cache_layout.h

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache_transfer/cache_layout.cpp

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache_transfer/cache_layout.h

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache_transfer/reshard_planner.cpp

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,

xllm/core/framework/kv_cache_transfer/reshard_planner.h

@@ -4,7 +4,7 @@ Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 
-    https://github.com/xLLM-AI/xllm/blob/main/LICENSE
+    https://github.com/jd-opensource/xllm/blob/main/LICENSE
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,