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Reader-retention as ritual, not capture (Codex's framing). Opt-in calm morning email of today's brief; the on-site twin is the finite end-of-feed nudge. * Schema: users.digest_enabled + digest_unsub_token; digest_sends (dedupe + visibility). auth.get_user now returns the digest fields. * goodnews/digest.py: build (dated calm subject, items w/ summary + "why it's here" + UB/source links + one-click unsubscribe, "you're caught up" sign-off) and send_due_digests (morning-window gated, >=4-item floor or skip quietly, deduped, reuses SMTP). No streaks/urgency/"you missed". * API: /auth/me exposes digest_enabled; POST /api/account/digest toggle; GET /api/digest/unsubscribe (token, no login, calm confirmation page). * CLI: cycle gains a morning-gated digest step (--no-digest) + a send-digests command (--force). * Frontend: digest toggle on the Account profile; the Highlights end-cap now says "you're caught up — see you tomorrow" with a one-tap "Get tomorrow's brief by email" (signed-in → enable; anon → sign in). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>