Why do Russian strikes continue after ceasefire announcements collapse?

Pro-Kremlin media analysis reveals Russia views ceasefires as strategically advantageous, labelling one energy agreement "a gift" because it constrains Ukraine from striking Russian refineries whilst Moscow faces minimal restrictions [1]. Despite Putin's one-day ceasefire offer and Trump's energy infrastructure truce, Russian missiles struck Ukrainian facilities multiple times in the hours following these announcements, with Zelensky dismissing Putin's limited proposal [2].