chore(release): 0.60.0 — VERSION bump + public release notes

Cuts the v4 (Tailwind migration) + focus/a11y foundation work for release. User-facing note covers the
app-wide keyboard-focus ring, steadier menu highlights, the three previously-invisible focus inputs,
and keyboard-reachable saved-view row actions; the v4 migration and dead-style cleanup are listed as
chores.

VERSION

@@ -1 +1 @@
-0.59.1
+0.60.0

frontend/src/lib/releaseNotes.ts

@@ -14,6 +14,24 @@ export interface ReleaseEntry {
 }
 
 export const RELEASE_NOTES: ReleaseEntry[] = [
+  {
+    version: "0.60.0",
+    date: "2026-08-08",
+    summary:
+      "Keyboard focus is now clearly visible across the whole app, menu highlights are steadier, and the styling engine was modernised for consistent theming.",
+    features: [
+      "Keyboard focus is now visible everywhere — buttons, links, menu items and inputs all show a clear accent outline when you move to them with Tab.",
+    ],
+    fixes: [
+      "A selected item in a menu keeps its highlight when you hover or arrow onto it, instead of fading to a faint tint.",
+      "The main search box, the About tooltip and the share-link field now show a focus ring when reached by keyboard.",
+      "A saved view's row actions (rename, share, delete) are now reachable by keyboard, not only on hover.",
+    ],
+    chores: [
+      "Migrated the styling engine to Tailwind v4, so theme colours and their opacities render consistently across every scheme and in both light and dark.",
+      "Removed dead styles (unused shadows and animations) and consolidated focus-ring and menu-highlight styling into shared recipes.",
+    ],
+  },
   {
     version: "0.59.1",
     date: "2026-08-06",