A failed favicon lookup was cached for a full week (same TTL as a
success), so a transient miss (e.g. the icon not yet indexed upstream)
blacklisted the domain for days. Cache negatives for 6 hours instead so
the next email retries.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Weak subscribe/subscription signals are now matched on the link href OR its
visible text (matched once, not additively), so a double opt-in email whose
button reads "Yes, subscribe me…" over an opaque tracking-redirect href is no
longer missed. Adds a regression test with anonymized fixture data.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Introduce CHANGELOG.md (Keep a Changelog) as the single source of release
notes, and scripts/release.sh (npm run release X.Y.Z) which promotes the
Unreleased section, commits the bare version as a real release commit, tags
it, and reopens the next -develop cycle. The Release workflow now verifies the
tagged commit's version equals the tag and publishes the CHANGELOG section as
the release notes instead of auto-generated commit lists.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>