Produces a readable, jargon-free internal engineering newsletter for a company-wide non-technical audience — what we shipped (in plain user/business terms), what we're building next (as outcomes), a "behind the scenes" paragraph making one technical thing accessible, and a team spotlight. Conversational tone, no corporate filler. Use when the user says "write the engineering newsletter", "monthly/bi-weekly eng update for the company", or pastes raw engineering updates to make company-readable. Use this for the broad company-wide newsletter — use team-weekly-summary for the team-internal Friday wrap-up and exec-status-update for leadership-up status.
