test(docs): preserve integrated Linux title bar and remove redundant NOTICE install

ROADMAP.md

@@ -122,7 +122,7 @@ Detail and the next releases: [docs/roadmap.md](docs/roadmap.md).
 
 | Date | Entry |
 |---|---|
-| 2026-10-21 | Linux defaults to System Title Bar so GNOME/Wayland has window controls. Saved choices and other platform defaults are preserved; startup and preference-dialog regressions cover both choices (#6266). |
+| 2026-10-21 | Linux can use font-free Adwaita controls when System Title Bar is selected, while the integrated CSD title bar remains the default (as in #4439). Saved preferences are respected; startup and preference-dialog regressions cover both choices (#6266). |
 | 2026-10-17 | Object Finder classifies background by boundary coverage, retaining large enclosed foregrounds and rejecting surrounding backdrop (#6548); learned segmentation remains open (#2788) |
 | 2026-10-10 | Full re-measure against Photoshop 2026 27.11.0 (installed bundle inspected): breadth ~76%, ready ~45%, alpha. Progress docs reorganized to the craftrules standard (`parity.md` → `parity-checklist.md`, `parity-estimate.md` merged into `target-app-parity.md`). 0.6.0 released. |
 | 2026-10-09 | Remove tool, Rotate View, crop rotation; OpenRaster and Paint.NET; 39 Affinity documents in the corpus |