Ratify the edition split and the 2026-07-28 design-review resolutions

Edition split follow-through: 12-editions.md and 13-native-undo.md join the
corpus; git-era docs (06, 07) are Pro-scoped and cross-references realigned.

Resolution session rulings written in place: caret chords yield to any focused
text control (04, 11); the drop settle holds its proposal as overlay state and
02 gains the overlays family; Duplicate gets the save-panel fallback and a
cancellable copy walk (03); Finder open is a standard document open (02);
failed first opens record before loading with the folder name provisional (02);
trash pointer ranges skip by kind, full-height marquee surface, Select All by
kind, rows-only trashed universe (02, 04); Empty Trash counts entries (03);
create handoff reads as one arrival (02); range-anchor lifecycle, board-
background click grammar, jump landing cards, lane-domain shift-arrows (04);
Reduce Motion restated per voice (10).

Claude-Session: https://claude.ai/code/session_01CqjXB7ASoWtbyoGod68k97

DESIGN/10-accessibility.md

@@ -44,7 +44,7 @@ The stance is committed in 00-vision.md: **accessibility is a requirement of "na
 - **Full relative scaling** (decided): relative text styles everywhere, no fixed point sizes. Card face, lane header, and masonry metrics derive from font metrics, so layout survives the largest system text sizes; the no-horizontal-scroll invariant is untouched (lane count is the user's choice; lanes scroll vertically), and 03-board-ui.md's graceful-truncation rules apply at every scale.
 - **Contrast is pinned to WCAG AA.** Lane and card colors render as edge accents (03-board-ui.md's top-edge band / left-edge stripe), so text never sits on them — they are supplementary decoration, never the sole carrier of information, and carry no text-contrast obligation. The ≥ 4.5:1 automatic-contrast rule binds where text does sit on a user-chosen color: the **board** background (palette pairs verified at design time; arbitrary hex computes its text color at runtime against that threshold). An `#RRGGBBAA` background with alpha computes against the color **composited over its effective backdrop** in the active appearance (the board's over the window background; light and dark resolve differently), recomputed on appearance change. Increase Contrast strengthens borders and the selection indicator.
 - **State is never color-alone**: selection is a ring plus trait, cut-pending is dim plus stated value, the trash header is hatched plus labeled — all already patterned; kept as a rule.
-- **Reduce Motion**: reflow-on-drag, search animate-out, the drag replica, the lane-resize rubber-band feedback (03-board-ui.md ▸ Lane — the selection marquee never animates and needs no variant), and trash animations all get reduced variants (crossfade or instant). **Reduce Transparency**: glass underlays (carousel page dots) go solid.
+- **Reduce Motion is a per-voice rule, not a feature list** (settled): movement animations go **instant**, appear/disappear transitions go **crossfade**, uniformly — every animated surface derives its reduced variant from its voice, the store's reload seam included (the largest animated surface in the app), so new surfaces never need individual rulings. The named cases — reflow-on-drag, search animate-out, the drag replica's lift and settle transitions (its 1:1 tracking never animates, like the selection marquee, which needs no variant — 03-board-ui.md ▸ Motion), the lane-resize rubber-band feedback (03-board-ui.md ▸ Lane), trash animations — are applications of the rule, not the rule itself. **Reduce Transparency**: glass underlays (carousel page dots) go solid.
 - **Full Keyboard Access** (independent of VoiceOver): the board is one tab stop with arrow-key navigation within; every control — lane buttons, popover, card window, welcome — is Tab-reachable.
 
 ## Verification