File manager: open a chat in a folder

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

CHANGELOG.md

@@ -5,6 +5,10 @@ until 1.0, minor versions may contain breaking changes.
 
 ## [Unreleased]
 
+### Added
+
+- File manager: *Open chat here* in a folder's menu starts a chat in that folder.
+
 ### Removed
 
 - *Settings → Config file* no longer offers to move `${NAME}` values into the configuration (a