README: document tabs, status bar, new shortcuts

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

README.md

@@ -13,6 +13,11 @@ remote server over SSH/SFTP, so you can move files **local↔remote**,
 ## Features
 
 - Dual-panel commander UI; either panel can be Local or any saved connection.
+- **Session tabs**: each tab is an independent left/right workspace; remote
+  sessions stay connected and transfers keep running in background tabs.
+- Per-panel action toolbar with a direction-explicit copy button, plus a
+  VSCode-style status bar showing live transfer progress (click to expand the
+  transfer queue).
 - Browse, sort (name/size/modified, folders first), keyboard navigation.
 - Create folder / file, rename, delete (recursive), change permissions (chmod).
 - Upload, download, and remote→remote copy — files **and** whole folders —
@@ -119,12 +124,14 @@ Saved connections live in a plain JSON file in the OS app-data directory
 `Tab` switch panel · `↑`/`↓`/`PgUp`/`PgDn`/`Home`/`End` move cursor ·
 `Space` select · `Enter` open folder · `Backspace` parent ·
 `Ctrl/Cmd+A` select all · `F5` copy to other panel · `F2` rename ·
-`F7` new folder · `F8`/`Delete` delete.
+`F7` new folder · `F8`/`Delete` delete · `Cmd/Ctrl+T` new tab ·
+`Cmd/Ctrl+W` close tab · `Ctrl+Tab` next tab.
 
 (On Macs, function keys may need `fn` — every action also has a toolbar button.)
 
 ## Not in v1
 
 Drag-and-drop, file preview/edit, transfer resume, symlink following
-(symlinks are listed but skipped by transfers), OS keychain, Windows/Linux
-packaging (the code is portable; only macOS packaging is wired up).
+(symlinks are listed but skipped by transfers), OS keychain, tab persistence
+across restarts, Windows/Linux packaging (the code is portable; only macOS
+packaging is wired up).