Migrate backend to herdr using a seamless translation shim wrapper

.agents/skills/multi-agent-mux-create/scripts/create_session.sh

@@ -79,7 +79,7 @@ fi
 [ -n "$AGENT" ]    || { echo "ERROR: --agent required" >&2; usage; exit 2; }
 [ -n "$ROLE" ]     || { echo "ERROR: --role required" >&2; usage; exit 2; }
 [ -d "$WORKSPACE" ] || { echo "ERROR: workspace $WORKSPACE not a directory" >&2; exit 1; }
-command -v tmux >/dev/null || { echo "ERROR: tmux not installed" >&2; exit 1; }
+command -v herdr >/dev/null || { echo "ERROR: herdr not installed" >&2; exit 1; }
 command -v "$AGENT" >/dev/null || { echo "ERROR: $AGENT CLI not in PATH" >&2; exit 1; }
 
 # Auth Check (OAuth check for agy, loggedIn check for claude, status for hermes)
@@ -231,23 +231,7 @@ TMUX_EPOCH=$(date +%s)
 NOW_ISO=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
 
 # 시작 명령 (CMD_FULL 은 spawn 전에 isolation 디스패치를 반영해 확정됨 — T4)
-local_tmux="tmux"
-if [ -n "${TMUX_SERVER_NAME:-}" ] && [ "$TMUX_SERVER_NAME" != "default" ]; then
-  local_tmux="tmux -L $TMUX_SERVER_NAME"
-fi
-
-case "$AGENT" in
-  claude)
-    if [ "$ISOLATE" != "1" ] && [ -x "$WRAPPER" ]; then
-      START_CMD="$WRAPPER   # ~/.local/bin 의 래퍼"
-    else
-      START_CMD="$local_tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$CMD_FULL\""
-    fi
-    ;;
-  agy|hermes|cline)
-    START_CMD="$local_tmux new-session -d -s \"$SESSION_NAME\" -x 140 -y 40 -c \"$WORKSPACE\" \"$CMD_FULL\""
-    ;;
-esac
+START_CMD="herdr agent start \"$SESSION_NAME\" --workspace \"${TMUX_SERVER_NAME:-default}\" --cwd \"$WORKSPACE\" -- $CMD_FULL"
 
 # If --onboard is specified, automatically build the onboarding prompt
 if [ "$ONBOARD" = "1" ] && [ -z "$SUBMIT_JOB_PROMPT" ]; then
@@ -332,8 +316,8 @@ entry = {
         'cwd': os.environ['PANE_CWD'],
     },
     'start_command': os.environ['START_CMD'],
-    'attach_command': f'tmux {server_opt}attach -t {name}',
-    'kill_command': f'tmux {server_opt}kill-session -t {name}',
+    'attach_command': f'herdr session attach {name}',
+    'kill_command': f'herdr session stop {name} && herdr session delete {name}',
 }
 
 # T5: isolation 블록 영속화 (all-L2) — resume/resolve/stop 이 재적용의 단일 소스로 사용
@@ -421,10 +405,6 @@ fi
 trap - EXIT
 echo "agent-sessions.yaml updated"
 echo
-if [ -n "${TMUX_SERVER_NAME:-}" ] && [ "$TMUX_SERVER_NAME" != "default" ]; then
-  echo "Attach:  tmux -L $TMUX_SERVER_NAME attach -t $SESSION_NAME"
-else
-  echo "Attach:  tmux attach -t $SESSION_NAME"
-fi
+echo "Attach:  herdr session attach $SESSION_NAME"
 echo "Delete:  use multi-agent-mux-stop skill"
 echo "Resume:  use multi-agent-mux-resume skill (after first message creates a session id)"