Optional cross-device sync

Provide an opt-in sync mode for lightweight settings, with a separate strategy for heavy assets given

One-click backup/restore

Single export/import (JSON) of all settings: defaults, per-chat overrides, fonts, bookmarks.

Bookmark bulk actions

Multi-select with move/copy/delete/export for large cleanups

Collapse responses

Individually (one by one) All simultaneously With per chat state saving (on chat reload all the collapsed responses remain collapsed)

Add response timestamps