Can a prompt replace Missive?

Build a shared team email inbox: connect one shared mailbox, and let multiple logged-in team members view the same incoming messages, leave internal comments visible only to the team and never sent to the customer, and assign a message to a specific teammate as the owner. Use Next.js/TypeScript with Postgres, and IMAP/SMTP for the connected mailbox — an app-specific password is enough, no OAuth app needed for a single shared mailbox. Sync incoming mail into a shared thread view; each thread shows the message history plus an internal comment thread beneath it, visible only to logged-in team members. Implement assignment (one owner per thread at a time, reassignable) and a simple status per thread (open/done) so the team can see what's been handled. Replying to a customer sends a real email through the connected SMTP account, clearly visually distinct from an internal comment so nobody accidentally sends a private note externally. Add a simple activity log per thread — who commented, assigned, or replied, and when. Do not build support for channels beyond email, automated routing rules, or cross-team contact history — those are out of scope; this is a shared inbox for one mailbox and one small team. Requires hosting, a domain, and the mailbox credentials for the shared account you're connecting.