* feat: enable search panel in CodeMirrorEditor
Add enableSearch and searchOpen props to toggle search UI
Wire CodeMirror search extension and keybindings into the editor
Automatically open or close the search panel based on searchOpen
* feat(files): add breadcrumb navigation and inline comments
Add breadcrumb trail derived from file path and root to navigate directories
Introduce inline comment UI with draft storage for per-file discussions
Enable long-press gestures on items to reveal quick actions
* feat: add useLongPress hook for long-press gestures
Provide a reusable long-press hook with onLongPress and onTap callbacks.
Support pointer and touch events with movement threshold to cancel.
Optionally vibrate on long press for haptic feedback.
* feat: add expandedPaths state and expand actions for file tabs
Introduce expandedPaths per root to remember expanded folders
Add actions to toggle, expand a path, and expand multiple paths
Initialize expandedPaths for new roots and clamp state to valid roots
* feat: add onSearchOpenChange prop to CodeMirrorEditor
Expose onSearchOpenChange callback prop for search state
Notify parent when search panel visibility toggles