Email thread to action items

Below is a 7-message email thread between a church administrator, an IT provider and a vendor about replacing the sanctuary AV system. Extract: participants (array of {name, email, organization, role}), decisions (array of {decision, decided_by, date}), open_questions (array of strings), action_items (array of {owner, task, due_date or null, source_message_index}), budget {approved_amount, currency, approved_by}, and next_meeting {date, time, timezone} or null. Only include decisions that were actually agreed, not proposals. Return only the JSON.