F-02: adding an idea to the Quest log answers an existing dinner as it is,
so it can come back as a Regular. useAddIdeaToQuestLog now resolves with
the dinner and its status (quest_log or regular, anything else an error),
and Cook from what I have and Quick dinners show "In the Quest log" or
"Already a Regular" from it; Quick dinners keeps the status per idea for
the session.
F-03: Find ideas is enabled by a chip or by nonblank text typed and not
yet added, which the search already lists.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>