sync: user's Lity3D_source.zip changes

- Engine core: improved initialization and lifecycle
- Renderer: camera and rendering pipeline updates
- Editor: updated editor code
- Window: improved window handling
- Demo/main.c: scene demo with AssetManager + scene loading
- build.bat: updated build script
- 11 files modified from user's manual edits

Engine/Core/logger.c

@@ -19,11 +19,11 @@ void logger_init(const char* log_file) {
     if (log_file) {
         g_log_file = fopen(log_file, "w");
         if (g_log_file) {
-            fprintf(g_log_file, "=== MiMo Engine ASM Log ===\n");
+            fprintf(g_log_file, "=== Lity3D Engine Log ===\n");
             fflush(g_log_file);
         }
     }
-    printf("=== MiMo Engine ASM Log ===\n");
+    printf("=== Lity3D Engine Log ===\n");
 }
 
 void logger_shutdown(void) {