`write_one_sidecar` took an `Option<&NextcloudBackend>` it ignored. It was a
leftover from the shape the write path had before online and offline separated
into two functions: the offline one records to the cache and queues, and has no
server to talk to by definition. A parameter that is always `None` and always
unused says the opposite — that there is a case where it is `Some` — and the
next reader has to check.
The closure it was threaded through is renamed to say what it does rather than
how it is called. `run(None)` needed the reader to know what `None` meant;
`queue_all()` is the sentence.
Also regenerates the traceability matrix, which now records FR-CAT-9's queue.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
dtourolleandClaude Opus 5
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