File manager: open a chat in a folder

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/whatsnew.ts

@@ -3,6 +3,10 @@
  * under "unreleased"; scripts/release.sh renames the key to the release version.
  */
 export const WHATS_NEW: Record<string, { en: string[]; de: string[] }> = {
+  unreleased: {
+    en: ["File manager: “Open chat here” in a folder's menu"],
+    de: ["Dateimanager: „Chat hier öffnen“ im Ordner-Menü"],
+  },
   "202611-00002": {
     en: [
       "opencode: “Fetch prices” fills in prices including long-context and peak-hour pricing",