feat: Implement 'clear' command in terminal

Add functionality to clear the terminal output history when the user enters 'clear' or 'cls'. This improves the usability of the terminal feature by allowing users to easily reset the display.

cogs/terminal_cog.py

@@ -237,8 +237,14 @@ class TerminalCog(commands.Cog, name="Terminal"):
             await interaction.response.send_message("Terminal session is not active. Use `/terminal` to start.", ephemeral=True)
             return
 
-        # Add command to history (before execution)
-        self.output_history.append(f"{self.current_cwd}> {command}")
+
+        # Handle 'clear' command separately
+        if command.strip().lower() == "clear" or command.strip().lower() == "cls":
+            self.output_history.clear()
+            self.output_history.append(f"{self.current_cwd}> ") # Add new prompt
+            self.scroll_offset = 0 # Reset scroll
+            await self._update_terminal_message(interaction)
+            return
 
         # Handle 'cd' command separately
         if command.strip().lower().startswith("cd "):