San Francisco (AFP) – The whirlwind week that Elon Musk took over Twitter began with sleepless nights for company engineers — and ended with half the staff getting the axe. “It was a strange week,” said one former employee speaking on condition of anonymity. “Executives were getting fired or were resigning, but there was basically no official communication until 5 pm Thursday,” some seven days after the deal was made official. The employees received a first email Thursday informing them that they would know their fate the next day. On Friday, the second email confirmed the rumors: 50 percent …