13.19d: 2190a1b verified; sizeLabel's ties tested; tests read optionals through value(); two mask tests brought to 13.12

TASKS.md

@@ -475,7 +475,11 @@ Reviews for this section ran on codex `gpt-6.1-sol` at `max` (agent `codex-sol`)
   - [x] 13.19c `63e42ac` (13.8's `upright` pin) built, run, its mutant caught.
   - 13.19c work: `SharpCanvasTests` passes; `transform.radians() == 0` set to `true` in `LayerRenderer::draw` and in `TiledLayerRenderer`, each caught by the turned rows (dropping `upright` inside `interpolation` leaves the parameter unused, which `-Werror` refuses).
   - 13.19c review: round 1 PASS.
-  - [ ] 13.19d `2190a1b` (13.10–13.12 tests) built and run; its open items closed: the 12.5b, 13.11 and 8.6 bullets, `sizeLabel`'s tie claim, 13.12's pending pixel gradient.
+  - [x] 13.19d `2190a1b` (13.10–13.12 tests) built and run; its open items closed: the 12.5b, 13.11 and 8.6 bullets, `sizeLabel`'s tie claim, 13.12's pending pixel gradient.
+  - 13.19d work: `MaskAloneTests`, `PaintRefusalTests` and `SelectionCanvasTests` pass. Mutants: the three reachable `paintRefusal` seams swapped, caught (mask off and adjustment exclude each other, an equivalent swap); the Shift axis test without either `abs`, without both, and `>`, caught; `drawMaskAlone` without its `isMask` or its layer term, caught; `setIsMaskSelected` keeping the view, caught. The 12.5b, 8.6 and 13.11 lines match the code. `sizeLabel`'s tie claim was false (1062.5 over 1000 pixels is exactly 106.25%): ties to even are now tested both ways (ICU's default rounding, which Swift's `.formatted` uses), `round` and `floor(x + 0.5)` caught.
+  - 13.19d review: round 1 FAIL: the 8.6 bullet's whole-sample blur timing, the 13.11 bullet's typed values as persistent, `->` on optionals in `MaskAloneTests`. Fixed; the same `->` in `CanvasEditContractTests`, `ImageFileDropTests`, `RawDevelopTests` and `SessionRecord.h` went too. Their run found `SelectionSignalTests` stale since 13.11 (Inverse of everything deselects, so the `deselect` after it is silent): the test now says so.
+  - 13.19d round 2: FAIL: other tests still read optionals through `->` and `*`, through aliases a text scan missed. Found by the compiler: in a throwaway container `std::optional`'s `operator->` and `operator*` were marked deprecated and every target built (`-O0`); 271 sites in 30 test files and headers, each now `.value()`, and the rerun finds none in `tests/` with every unit compiled. The full suite at `-j8` then failed `FilterSessionTests` and `SelectionFeatherTests` alone too: both still called `addMask(false)` to reveal a selection, the meaning 13.12 flipped (`0b0d36a`); now `addMask(true)`. 329 of 329 at `-j8`.
+  - 13.19d round 3: PASS.
   - [ ] 13.19e `70318de` (13.13 and 13.16 fixes and tests) built and run.
   - [ ] 13.19f The fixes since `81894f7` already tested (`382c9c2` for 13.9a and 13.9b, `6735aad` for 13.7, 13.14 and 13.15, `5c8e18c` for 13.17 and 13.18) reviewed: review 3's scope.
   - [ ] 13.19g The full suite under `ctest -j16`; the shared state behind the five parallel failures found and isolated.