This was causing a lot of work on startup, particularly due to
instantiating edit tool cards. The minor downside is that now these
threads don't open quite as fast.
Includes a few other improvements:
* On text thread rename, now immediately updates the metadata for
display in the UI instead of waiting for reload.
* On text thread rename, first renames the file before writing. Before
if the file removal failed you'd end up with a duplicate.
* Now only stores text thread file names instead of full paths. This is
more concise and allows for the app data dir changing location.
* Renames `ThreadStore::unordered_threads` to
`ThreadStore::reverse_chronological_threads` (and removes the old one
that sorted), since the recent change to use a SQL database queries them
in that order.
* Removes `ContextStore::reverse_chronological_contexts` since it was
only used in one location where it does sorting anyway - no need to sort
twice.
* `SavedContextMetadata::title` is now `SharedString` instead of
`String`.
Release Notes:
- Fixed regression in startup performance by not deserializing and
instantiating recently opened agent threads.
Michael Sloan
cabd22f36b