release v2.7.1

Patch on 2.7.0: Josefin Sans is the default UI font again (Inter stays
selectable), and Claude's markdown-rendered prose + links now honour the
live UI-font setting instead of pinning the bundled default (T-475).

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

pubspec.yaml

@@ -13,7 +13,7 @@ description: >-
   subsystem handlers (pane, files, editor, git, pql), and the
   extension framework.
 publish_to: none
-version: 2.7.0
+version: 2.7.1
 repository: https://github.com/postmeridiem/clide
 # Short user-facing tagline (the welcome subtitle, web meta
 # description, etc.). Baked into lib/src/build_info.g.dart by