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mavend seals its encrypted database in `defer st.Close()` when run() returns. It had not returned since 2026-07-21. Every restart since then decrypted the same eleven-day-old ciphertext and rolled back everything written in between: the Telegram nudge that kept firing was a fact being un-written on each boot. The goroutine dump named it. main → srv.Close() → ipc.(*Server).Close → wg.Wait(), waiting on per-connection goroutines parked in readFrame. Close shut the listener and nothing else, so the idle persistent sockets held by mavweb, mavpoll, mavcaldav and mavmaild blocked shutdown forever. `docker compose stop -t 60` spent the whole sixty seconds and then took a SIGKILL. So: track the accepted conns and close them, in ipc and in voice, which had the identical defect. Bound all three waits — the two per-server ones and the worker wait in main — because the seal matters more than any single in-flight call. A dropped RPC costs one reply; a missed seal costs a session. The regression test leaves a client connected and idle, which is the case the old tests avoided by closing the client first. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TrVSBKe3RFDF4fGYKWYQnX