Notes now use the single performant inking engine (PenCanvas) instead of
the old ink_canvas, per "all note features on the pen-first canvas".
- ink_stroke_adapter: pure InkStroke<->PenStroke bridge (normalize against
a logical note page; drop non-freehand shapes/text). Round-trip tested.
- pen_palette_widgets: shared M3 ToolButton/PaletteDivider/RoundIconButton
so PDF + note editors use identical chrome (PenEditorScreen migrated to
them; its private copies deleted).
- PenNoteScreen: PenCanvas over a white logical page, undo/redo, title,
save -> Note.strokes (+ local OCR for search). Pressure curve, eraser
size/mode and palm rejection all inherited from the shared canvas.
- Route home (new/open) + search note hits -> PenNoteScreen; remove the
now-redundant "Pen Canvas (beta)" spike button; delete the dead old
note_editor_screen.
Tests: ink_stroke_adapter (5) + pen_note_screen widget (load + commit, 2).
flutter analyze: 0 issues. Full suite: 265/265.
The SpeedyNote-style page binding the user asked for: a notebook is an ordered
list of logical pages, each a SOURCE page (renders PDF page N, vector preserved)
or a BLANK inserted page. Crucially, inserting/reordering logical pages does NOT
renumber the PDF underlay — each page carries its source index. Copy-on-write
edits (insertBlankAt/After, removeAt, move) return a new immutable PageMap;
out-of-range edits throw RangeError; value equality + unmodifiable page list.
Pure model (no DB/widget) so it's fully unit-tested; the notebook_pages table +
viewport wire it later.
flutter analyze lib/editor clean; 156/156 tests (+11).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
