Comment-only follow-up to surface non-obvious behavior at the call
sites flagged in review:
- server/talk.py: note the `uuid.uuid4().hex` 32-char no-dashes format
(spreed accepts either form).
- models/talk.py: warn that spreed returns `lastReadMessage: 0` rather
than `null` for unread rooms, so consumers should compare to ``None``
rather than rely on truthiness.
- 10-install-spreed-app.sh: document that the `app:install || app:enable`
fallback also masks unrelated install failures, and limit its use to
dev fixtures.
No runtime behavior changes; tests unchanged (still 13 unit + 7 integ).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
