Add !clear command and simplify !reset confirmation message

Both !clear and !reset now respond with "Conversation memory cleared."

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

meshai/commands/clear.py

@@ -0,0 +1,17 @@
+"""Clear command handler (alias for !reset)."""
+
+from .base import CommandContext, CommandHandler
+
+
+class ClearCommand(CommandHandler):
+    """Clear conversation history and summary."""
+
+    name = "clear"
+    description = "Clear your chat history"
+    usage = "!clear"
+
+    async def execute(self, args: str, context: CommandContext) -> str:
+        """Clear conversation history and summary for the sender."""
+        await context.history.clear_history(context.sender_id)
+        await context.history.clear_summary(context.sender_id)
+        return "Conversation memory cleared."

meshai/commands/dispatcher.py

@@ -169,6 +169,7 @@ def create_dispatcher(
     Returns:
         Configured CommandDispatcher
     """
+    from .clear import ClearCommand
     from .help import HelpCommand
     from .ping import PingCommand
     from .reset import ResetCommand
@@ -178,6 +179,7 @@ def create_dispatcher(
     dispatcher = CommandDispatcher(prefix=prefix, disabled_commands=disabled_commands)
 
     # Register all built-in commands
+    dispatcher.register(ClearCommand())
     dispatcher.register(HelpCommand(dispatcher))
     dispatcher.register(PingCommand())
     dispatcher.register(ResetCommand())

meshai/commands/reset.py

@@ -17,7 +17,4 @@ class ResetCommand(CommandHandler):
         # Also clear the conversation summary
         await context.history.clear_summary(context.sender_id)
 
-        if deleted > 0:
-            return f"Cleared {deleted} messages from history"
-        else:
-            return "No history to clear"
+        return "Conversation memory cleared."