AGENTS and TASKS for 13.10, 13.11, 13.12; liveFolderMaskClip beside drawMaskAlone

TASKS.md

@@ -439,9 +439,12 @@ Reviews for this section ran on codex `gpt-6.1-sol` at `max` (agent `codex-sol`)
 - 13.9a port (agent): Soft Light by Photoshop's formula (Qt's is the PDF's, up to 17 levels darker on dark backdrops); stacks, coverage and adjustments in every mode held and proven. Tests in `BlendingTests`, `BlendModeTests`, `ClippingStackTests`. Survivor recorded: `<= 0.5` for `< 0.5` (equivalent). No review yet.
 - [x] 13.9b Part three: the Metal canvas (`cdf8674`, `4b04323`, `5708ed3`, `93de9e7`, `54dd707`, `91cb0b1`, `f773f7b`, `4c5e1a6`, `d04f159`, `b1b7490`) stays CPU (the port's decision); each contract its tests hold for every canvas is judged and, where the twin lacks it, ported: Grain and Add Noise anchored to the document while panning and zooming, the canvas mapping its surface back to document coordinates (`54dd707`; the twin's adjustments take view-space regions today); every adjustment kind with alpha, own and folder masks and opacity, blurs at the drawn scale and direction (`54dd707`); a moved or duplicated selection's preview and commit (the hole cut only for a move, the rounded offset, opacity and coverage once) and the lazy tiles realised before display and commit, a failure cancelling the move with `brushError` (`4b04323`); live paint, erase and mask paint replacing patch interiors, revealing paint past the old bounds under the old mask, gradients' selection clip and opacity matching the commit, the lazy gradient fill realised before display and commit, Smudge and Liquify previews keeping mask, opacity and placement (`5708ed3`, `91cb0b1`); a new one-pixel white mask revealing its whole layer, rotated or scaled without a faded edge, and the live paint grid's extent kept (`93de9e7`); rotation, flips and scale, sharp successive reductions, premultiplied blending in every mode with layer and ancestor opacity, the checkerboard anchored to the document, the crisp composite at high zoom (`cdf8674`); non-adjacent live mask sources, distortion previews (perspective, folded, flipped, placed masks, effects), text previews keeping effects and handing them on without a flash, new drafts above the active layer inside a clipping stack, lines above the image, effects and placed masks kept while brushing, painting masks, dragging gradients and moving pixels (`f773f7b`); sharp reductions and fresh paint pixels (`4c5e1a6`, `d04f159`); `b1b7490` only words a test's diagnostics. Also named, each to judge: sampling modes and rounded-up reduction extents, premultiplied blending in sRGB, the surround, shadow and border, placed own masks and multiplied folder masks on ordinary pixel layers, and filter, Levels and Hue/Saturation previews replacing the layer's pixels with its alpha, mask, opacity and placement (`cdf8674`); image-edge sampling that carries edge values outward for filtering and keeps the image's own boundary, for ordinary images and live grids as for the white mask (`93de9e7`); adjustment results equal to the CPU reference, deterministic Noise and Grain seeds, Add Noise counted in frame pixels from the document's corner and Grain's size in document pixels (`54dd707`); a lazy gradient fill that fails cancelling the gradient with `brushError`, and a failed commit publishing it (`5708ed3`); Smudge and Liquify strokes and commits equal to the CPU algorithms (`91cb0b1`, `matchesTheCPU`: the twin's CPU path is the reference, a held judgment); new text shown when the active layer cannot draw, the pixel grid and the new text frame drawn above the image and passing input through, and edits keeping mask gray values and effects and placed masks as paint bounds grow (`f773f7b`). Texture retention, eviction and blits are GPU mechanisms with no CPU twin.
 - 13.9b port (agent): Grain and Add Noise anchored to the document on the canvas (`adjustmentRegion`); every other GPU contract judged held, gaps pinned in `AdjustmentCanvasTests` and `CanvasEditContractTests`; the grid over the border hairline left as a known difference. No review yet.
-- [ ] 13.10 Part three: Shift keeps moved pixels on a line (`60bde4f`); Ctrl+A selects the canvas from the Layers panel (`451281e`).
-- [ ] 13.11 Version 1.4.1, part one: why a brush can't paint, Select All then Inverse deselects (`133c34a`); painting at the layer's own resolution (`d3170ab`): Clone Stamp and Blur sample there, the Brush and eraser on a scaled-down, rotated or unequally scaled layer that holds pixels lay a tip of the layer's own pixels and show a smooth edge scaled back up, while an empty layer, however small its transform, paints at document resolution (`paintingABlankLayerThatWasScaledDownPaintsAtDocumentResolution`); the twin's coverage in the stroke's grid (`BrushStroke::grid`, `BrushCoverage::render`) may already hold both, a held judgment to prove with `NativeResolutionPaintTests`' cases; Cancel and Apply only when an edit waits, scaled layers' scale (`67cc31e`).
-- [ ] 13.12 Part two: masks as Photoshop's: the button reveals the selection, Alt-click shows a mask alone (`b3419ab`).
+- [x] 13.10 Part three: Shift keeps moved pixels on a line (`60bde4f`); Ctrl+A selects the canvas from the Layers panel (`451281e`).
+- 13.10 port (agent): Shift keeps a Ctrl-dragged selection's pixels on the longer axis; Ctrl+A from the Layers panel selects the canvas (`selectAllRows` gone). No review yet.
+- [x] 13.11 Version 1.4.1, part one: why a brush can't paint, Select All then Inverse deselects (`133c34a`); painting at the layer's own resolution (`d3170ab`): Clone Stamp and Blur sample there, the Brush and eraser on a scaled-down, rotated or unequally scaled layer that holds pixels lay a tip of the layer's own pixels and show a smooth edge scaled back up, while an empty layer, however small its transform, paints at document resolution (`paintingABlankLayerThatWasScaledDownPaintsAtDocumentResolution`); the twin's coverage in the stroke's grid (`BrushStroke::grid`, `BrushCoverage::render`) may already hold both, a held judgment to prove with `NativeResolutionPaintTests`' cases; Cancel and Apply only when an edit waits, scaled layers' scale (`67cc31e`).
+- 13.11 port (agent): `paintRefusal` says why a brush, gradient (a fix beyond Swift) or the Smear refuses; Inverse of everything deselects; Clone Stamp and Blur sample in the stroke's own grid (`Clone` as Swift's image, placed, inGrid; `gridRect`; `blurSample`'s budget); the held judgment holds (`NativeResolutionPaintTests`, no change to the grid or coverage); Cancel and Apply fade in only for a waiting edit; `sizeLabel`. No review yet.
+- [x] 13.12 Part two: masks as Photoshop's: the button reveals the selection, Alt-click shows a mask alone (`b3419ab`).
+- 13.12 port (agent): the mask button reveals the selection, Alt-click hides it; Alt-click on a mask thumbnail shows the mask alone (`viewsMaskAlone`, `toggleMaskAlone`, `drawMaskAlone`, a white ring, `MaskAloneBadge`); `liveFolderMaskClip` moved to `EditorCanvas+Masks.cpp`. No review yet.
 - [ ] 13.13 Part three: Ctrl flips Auto Select both ways and Shift the aspect lock, live in the bar (`bca8f13`, `03d692c`); Move bar values apply without Apply as one step (`686d8c7`); resize handles snap (`c459f88`).
 - [x] 13.14 Part four: tabs drag to reorder, the ones that don't fit gather in a menu (`1faf7a0`).
 - 13.14 port (agent): tests in `ProjectTabLayoutTests` (Swift's six and the bounds), `ProjectTabDragTests` (drag, slide, stacking, landing, threshold, busy, lost release, a close mid-drag, the overflow pill and its menu), `ProjectWorkspaceTests` (`moveTab`) and `ProjectWorkspaceViewTests`. Survivor recorded: reporting `ended` after a click that never dragged (equivalent but after a lost release); `span`'s empty guard and `contentWidth`'s pill fallback removed as dead. No review yet.