4464e5d91f
cmd_delegate deletes the message file immediately after spawning the background nohup process, causing a race condition where opencode run may not have read the file yet. Error: File not found: msg-ses_xxx.txt Fix by removing rm -f "$msg_file", consistent with cmd_start and cmd_continue which write to $worktree_path/.kugetsu-msg.txt and never delete it. Orphaned msg files in $LOGS_DIR/ are harmless. Fixes #210