docs: record Fyne v2.8.2 blocker re-check in ROADMAP and CHANGELOG

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/CHANGELOG.md

@@ -12,7 +12,9 @@ restructured around what actually blocks each item.**
 - **`ROADMAP.md`** — reorganized into Features, Platform, Fyne/UI, and
   Maintenance. The over-the-guideline file-split item is closed; each deferred
   UI item now states whether it is blocked on a missing Fyne API, on UX
-  (shippable today but deferred), or on maintenance timing.
+  (shippable today but deferred), or on maintenance timing. The Fyne/UI
+  blockers were re-checked against Fyne v2.8.2 (GoSentry stays on v2.7.4, the
+  last 2.7.x release): none is lifted, so upgrading gains nothing for them.
 - **`ARCHITECTURE.md`** — documents the new file layouts for `operations.go`,
   `store.go`, `history_view.go`, and `settings_view.go`; the size guideline
   now states the 20% tolerance explicitly; `settings_view` is recorded as