Phase 3: scheduled background checks + Discord notifications#10
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Replace Diun's scheduled ping with our own. New modules: - scheduler.js — a setInterval-based background checker that runs the same registry check the button triggers, on a configurable interval; re-armed when settings change, overlap-guarded, started on boot / stopped on shutdown. - notify.js — formats a concise "updates available" Discord message and POSTs it to a webhook (pure payload builder + sender). Dedupe: a `notified` column on update_events (added via migration) so each update is announced once; new digests re-notify. Settings gain backgroundCheckEnabled, backgroundCheckIntervalHours, discordEnabled, discordWebhookUrl (env-seedable: BACKGROUND_CHECK_ENABLED, CHECK_INTERVAL_HOURS, DISCORD_WEBHOOK_URL). New POST /api/notify/test + get a "Send test message" button. Settings page gains a "Background checks & Discord" section. Docs + API_CONTRACT updated. Server tests 68/68; client builds clean.
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Replaces Diun's scheduled ping with our own — the last piece that made Diun necessary.
What's new
scheduler.js— asetIntervalbackground checker that runs the same registry check the "Check for updates" button triggers, on a configurable interval. Re-armed when settings change, overlap-guarded, started on boot / stopped on graceful shutdown. No cron dependency.notify.js— formats a concise "updates available" Discord message and POSTs it to a webhook (pure payload builder + sender, both unit-tested).notifiedcolumn onupdate_events(added via migration) so each update is announced once; a new digest re-notifies.backgroundCheckEnabled,backgroundCheckIntervalHours,discordEnabled,discordWebhookUrl— env-seedable (BACKGROUND_CHECK_ENABLED,CHECK_INTERVAL_HOURS,DISCORD_WEBHOOK_URL), UI overrides at runtime.POST /api/notify/test+ a Send test message button, and a new "Background checks & Discord" Settings section.Defaults
Background checks on, every 6h. Discord off until you paste a webhook URL.
Test plan
cd server && node --test→ 68/68 (added settings-validation + notify-payload tests)cd client && npm run build→ cleanNext
Phase 4 — the fetched changelog "what's changed" panel (this already added the per-card source/changelog link in Phase 2).
Generated by Claude Code