Allow /stop without target argument

src/lazy_enter/bridge.py

@@ -96,11 +96,10 @@ class Bridge:
 
     def _handle_command(self, action: str, target: str, channel: str) -> None:
         """슬래시 커맨드를 처리한다."""
-        if target not in {"claude", "codex"}:
-            self.slack.send_message(channel, ":warning: 지원하지 않는 대상입니다.")
-            return
-
         if action == "start":
+            if target not in {"claude", "codex"}:
+                self.slack.send_message(channel, ":warning: 지원하지 않는 대상입니다.")
+                return
             self._start_session(channel, target)
         elif action == "stop":
             self._stop_session(channel)

src/lazy_enter/slack_handler.py

@@ -86,23 +86,12 @@ class SlackHandler:
             ack()
             user_id = body.get("user_id", "")
             channel_id = body.get("channel_id", "")
-            target = self._parse_target(body.get("text", ""))
 
             if not self._is_authorized(user_id, channel_id):
                 return
 
-            if target is None:
-                self.send_message(
-                    channel_id,
-                    (
-                        ":warning: 대상은 `claude` 또는 `codex`여야 합니다. "
-                        "예: `/stop claude`"
-                    ),
-                )
-                return
-
             if self._on_command_callback:
-                self._on_command_callback("stop", target, channel_id)
+                self._on_command_callback("stop", "", channel_id)
 
     @staticmethod
     def _parse_target(text: str) -> str | None: