fix: chatbot conversation rename/delete unreachable on mobile (v0.55.1)

Both buttons were opacity-0 group-hover:opacity-100 — no touch equivalent
to :hover, so they never appeared on mobile at all. Made them always
visible, matching the app's existing convention for per-item actions in
narrow lists (e.g. shopping-list-actions-menu.tsx) rather than hover-reveal.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/web/lib/changelog.ts

@@ -1,5 +1,5 @@
 // Mirrors CHANGELOG.md at the repo root — update both together.
-export const APP_VERSION = "0.55.0";
+export const APP_VERSION = "0.55.1";
 
 export type ChangelogEntry = {
   version: string;
@@ -11,6 +11,13 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "0.55.1",
+    date: "2026-07-19 18:05",
+    fixed: [
+      "Chatbot's rename/delete buttons for a conversation were hover-only, so they never appeared on mobile (no hover state on touch). Now always visible.",
+    ],
+  },
   {
     version: "0.55.0",
     date: "2026-07-19 17:50",