Move four DDD tensions on the Feed aggregate to ground:
- #1 The aggregate now holds a domain FeedState (camelCase) instead of the
snake_case FeedConfig DTO; infrastructure/feed-mapper.ts owns the
FeedState<->FeedConfig/FeedListItem translation as the sole snake_case site
outside the HTTP edge.
- #3 Replace the edit() recomputeExpiry control flag with a Lifetime VO:
passing a lifetime recomputes expiry, omitting it preserves the current one
(the dashboard quick-edit path).
- #4 Domain events carry their own feedId; dispatchFeedEvents centralizes the
drain+dispatch in the application layer (no more manual pullEvents at call
sites), keeping infra->application dependency direction intact.
- #6 Rename FeedId.fromTrusted to FeedId.unchecked to make the absence of
revalidation explicit.
Adds Lifetime + feed-mapper round-trip tests. 353 tests green, tsc clean,
wrangler dry-run OK. Docs (CLAUDE.md) synced.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Light "collect + dispatch" variant: the Feed aggregate records FeedEvents
(FeedCreated, EmailIngested) on the mutations that have consequences, exposed via
pullEvents(). A new application dispatcher (feed-events.applyFeedEvents) maps
those events to their side effects — counters (awaited) plus WebSub pings and
favicon fetches handed to a BackgroundScheduler. This removes the inline,
scattered side effects from the ingest hot path (email-processor) and from
createFeedRecord; the aggregate is now the source of truth for "what happened".
Side effects with no aggregate mutation (rejected email, feed deletion bypassing
the aggregate, bulk admin ops, the cron, unsubscribes-sent) stay imperative by
design — there is no aggregate event for them to ride on.
BackgroundScheduler type moved to infrastructure/worker.ts (shared). CLAUDE.md
updated. 355 tests pass (+4 event tests); tsc --noEmit clean.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Julien Herr