What are the allegations against Lindsey and Craig Foreman in Iran?

According to Mizan News agency, Lindsey and Craig Foreman allegedly entered Iran under the pretense of tourism but are accused of collecting intelligence for Western intelligence agencies. The couple had been documenting their journey in Iran almost daily on social media. This narrative contrasts sharply with the Foremans' own explanation and their family's account. Lindsey Foreman, a life coach, had explicitly stated in her social media posts that they were conducting a worldwide research project about what it means to live a 'good life' - not engaging in espionage as claimed by Iranian authorities.