- Add encode import to cmd/netsynth/main.go - Remove TODO(phase-3) stub and _ = collectedSnapshots - Print protocol summary BEFORE encoding (D-08) - Add 'Encoding N windows to path...' status message (D-07) - Add 'Saved path (Xs, N KB, encoded in Xs)' confirmation (D-09) - Update Long description: remove '(in future phases)' qualifier - Audio duration uses float64 to avoid integer truncation (Pitfall 4)