feat(模型加载): 添加sync_to_temp选项支持临时目录加载

添加sync_to_temp参数控制是否将模型文件复制到临时目录后再加载

include/llama.h

@@ -314,6 +314,7 @@ extern "C" {
         bool use_extra_bufts; // use extra buffer types (used for weight repacking)
         bool no_host;         // bypass host buffer allowing extra buffers to be used
         bool no_alloc;        // only load metadata and simulate memory allocations
+        bool sync_to_temp;    // copy model to temporary directory before loading
     };
 
     // NOTE: changing the default values of parameters marked as [EXPERIMENTAL] may cause crashes or incorrect results in certain configurations