release v2.8.0

The i18n epic (T-462): every user-facing label — panels, dialogs, command
palette, menus, settings, framework chrome — now resolves through the i18n
catalog instead of a hardcoded string. Catalogs are bundled per locale under
assets/i18n/<locale>/<namespace>.json. Adds a live UI-language selector
(Settings → Appearance → Language) and a full Dutch (nl-NL) pack; English
stays the default. Architecture in D-102.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -22,6 +22,22 @@ heading, and (b) bumping `pubspec.yaml` `version:` in the same commit.
 
 ### Fixed
 
+## [2.8.0] — 2026-06-19
+
+### Added
+
+- **Language selector + Dutch (nl-NL).** Settings → Appearance → Language
+  switches the UI language live (persisted as `app.locale`); a full Dutch
+  translation ships. English (en-US) stays the default. (T-462)
+
+### Changed
+
+- **App is fully localizable (i18n everywhere).** Every user-facing label —
+  panels, dialogs, command palette, menus, and settings — now resolves through
+  the i18n catalog instead of a hardcoded string; catalogs are bundled per
+  locale under `assets/i18n/<locale>/`. A new language is a drop-in folder;
+  en_US behaviour is unchanged. (T-462)
+
 ## [2.7.1] — 2026-06-18
 
 ### Changed