Conversations can now be filed into flat (non-nested) folders, shown
as collapsible sections in both the sidebar and the advanced
conversation list. New folders migration (v9) adds a folders table
and conversations.folderId with ON DELETE SET NULL, so deleting a
folder unfiles its conversations rather than losing them. Move/rename/
delete via context menu; conversation lists with no folders fall back
to the existing flat view unchanged.
Extends the existing Stats sheet (⌘⇧S) with a Session/All-Time segmented
picker. All-Time aggregates tokens, cost, and message counts across every
saved conversation, broken down by model and by conversation, using the
modelId already stored per message — no schema change needed.
17 tests against throwaway in-memory DatabaseService instances: all
v1-v8 tables/columns exist post-migration, settings CRUD, conversation
save/load round-trip, instance isolation between separate in-memory
queues, and ContextSelectionService's DB-coupled paths (starring,
excluded-range summaries, smartSelection end to end) that were
previously untestable.
rune