Camera Raw panel's remaining groups and the Filter menu entry (12.8b2)

TASKS.md

@@ -355,7 +355,10 @@ The panel of 4.6 shows and edits what the session holds so far. Each item adds i
 - 12.8e: the cause, from a backtrace under load: Qt 6.4's `QHash` insert (`findOrInsert`, `noexcept`) terminates when it cannot allocate, and the JPEG worker's render filled a `QHash` in `LiveMaskGraph::validate`. The render path's hash containers are `std::map` and `std::set` now; `RenderStarvationTests` fails each allocation in turn. Round 1: PASS, its note taken (bake's workers catch `ExportError` alone).
 - [x] 12.8p Review PR #8 (a self-contained AppImage workflow from a contributor) and say whether it can merge (the user's request, 2026-09-27).
 - 12.8p: built the workflow's AppDir locally on Ubuntu 24.04. Not mergeable: `AppRun` is a bare symlink, so the bundled model under `$APPDIR/usr/share` is never on `XDG_DATA_DIRS` and Remove Background finds no model; libheif's HEVC plugin is not bundled; only xcb is deployed; its tag runs clash with `release.yml`; its tools are unpinned. Changes requested on the PR, with the user's approval.
-- [ ] 12.8b2 Version 1.2.3, part three: Curve, Color Mixer, Color Grading (its wheels turning the way their hue runs, 1.2.9's `96edd5f`), Detail, Optics, Geometry and Calibration in the panel, and the Filter menu's Camera Raw entry.
+- [x] 12.8b2 Version 1.2.3, part three: Curve, Color Mixer, Color Grading (its wheels turning the way their hue runs, 1.2.9's `96edd5f`), Detail, Optics, Geometry and Calibration in the panel, and the Filter menu's Camera Raw entry.
+- 12.8b2 round 1: FAIL: two classes named `CurveGraph` shared a vtable (renamed); a real double click re-added the point; the wheel's double click reset outside the circle; 79 of 81 mutants lived. All fixed, with row tables and drawing tests.
+- 12.8b2 round 2: FAIL, residue: words, captions, buddies, picker states, page visibility, the wheel's lower half and rim, the curve's line, repaints, the selected point. All pinned.
+- 12.8b2 round 3: FAIL: the AGENTS.md wheel sentence was wrong; the widgets' following of the model and two guards were unpinned. Fixed after the round and closed, as the rule allows; the last mutants caught.
 - [ ] 12.8c Version 1.2.3, part four: Inner Glow, Image Trim, blur and noise adjustment layers, the layer context menu without 1.2.5's dropped Layer Effects entry (`5d7adba`).
 - [ ] 12.8r Release OmaPhoto 1.2.3 once 12.8b2 and 12.8c are in (the user's decision, 2026-09-27): the GitHub release, and `versionupdate.md` with what changed since 1.0.1.
 - [x] 12.8d A `std::bad_alloc` aborted `ProjectExportFailureTests` under a parallel run (seen in 12.7b and 12.8a; alone it passed ten of ten): the panel tests held a memory limit while dialogs painted, and the panel limits sat at the edge of what the panel and its snapshot need.