news-cycle.timer runs poll then notify every 15 minutes; news-digest.timer runs
the briefing at 08:45 daily. Both enabled and verified: a manual cycle fetched
1047 items, embedded 95 new ones and clustered them in 74s.
Units are installed as COPIES rather than symlinks. The previous service's units
were symlinked into docs/projects/news/deploy/, and when that repo was renamed
to news_triage they became dangling and the timer failed every ten minutes,
unnoticed, until this rebuild found it. Copying costs a re-copy after editing;
symlinking cost days of silent failure.
Deliberate details: the poll ExecStart is `-` prefixed so a failed fetch does not
skip notify; RandomizedDelaySec spreads polling off the quarter hour rather than
hitting 56 sources at once; the digest is Persistent so a machine that was off
at 08:45 still sends rather than skipping the day.
