Update help command to include keyboard shortcuts

desktop-client/room_widget.py

@@ -967,7 +967,21 @@ class RoomWidget(QWidget):
                 return
             elif cmd == "/help":
                 self.chat_input.setText("")
-                self.add_system_message("Available commands:<br><b>/play</b> - Resume playback<br><b>/pause</b> - Pause playback<br><b>/seek [time]</b> - Seek to specific time<br><b>/tag [now|time] [name]</b> - Tag a timestamp<br><b>/time</b> - Show current time<br><b>/help</b> - Show this message")
+                help_text = """
+                <b>Available Commands:</b><br>
+                • <b>/play</b>, <b>/pause</b> - Control playback<br>
+                • <b>/seek [time]</b> - Seek (e.g., 1:23, +30s, -1m)<br>
+                • <b>/tag [now|time] [name]</b> - Create a highlight<br>
+                • <b>/time</b> - Show current timestamp<br>
+                • <b>/help</b> - Show this message<br><br>
+                <b>Keyboard Shortcuts:</b><br>
+                • <b>Space</b>: Play/Pause<br>
+                • <b>F</b>: Fullscreen | <b>M</b>: Mute<br>
+                • <b>Left/Right</b>: Seek ±5s<br>
+                • <b>Up/Down</b>: Volume ±5%<br>
+                • <b>Enter</b>: Focus chat | <b>Esc</b>: Clear focus
+                """
+                self.add_system_message(help_text)
                 return
 
         self.chat_message_ready.emit(text)