[Bugfix][Core] Reserve the KV null block when validating max_model_len (#47272)
Signed-off-by: hyungjun oh <92hyungjun@gmail.com>
Signed-off-by: Nick Hill <nickhill123@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Nick Hill <nickhill123@gmail.com>