fix(shm_win): Use mem::$delete instead of mem::free in release()

The acquire() function allocates id_info_t using mem::$new<id_info_t>(),
so the release() function must use mem::$delete(ii) to deallocate it,
not mem::free(ii). This ensures proper allocation/deallocation pairing.

Issue: Memory allocated with mem::$new must be freed with mem::$delete
to maintain consistent memory management semantics.

src/libipc/platform/win/shm_win.cpp

@@ -161,7 +161,7 @@ std::int32_t release(id_t id) noexcept {
         ipc::error("fail release: invalid id (h = null)\n");
     }
     else ::CloseHandle(ii->h_);
-    mem::free(ii);
+    mem::$delete(ii);
     return ret;
 }