A highlight and its note are now a single BookNote. Adding a note attaches
it to the highlight at that CFI (or creates one with the current global
style) instead of creating a second record, and a unified record renders as
both a highlight overlay and a note bubble.
- onDrawAnnotation chooses the draw kind from the overlay value prefix
(cfi -> highlight, NOTE_PREFIX -> bubble) instead of annotation.note, so a
record with both a style and a note draws both. Fixes notes synced from
KOReader losing their highlight (#4511).
- handleSaveNote updates the existing annotation at the CFI rather than
pushing a new record (#3870); re-styling preserves the note.
- unifyAnnotations migration (book config schema v1 -> v2, run in
deserializeConfig) collapses existing split highlight+note records into one
survivor and tombstones the redundant record (deletedAt) so the merge syncs
to the cloud and KOReader.
- Sidebar: a note's quoted highlight text uses the theme foreground so it
stays legible on the highlight background.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>