fix(workflow): auto-assign issues and prs (#2271)

scripts/deep-work/cli.sh

@@ -11,6 +11,10 @@ Usage: pnpm deep-work <command> [args...]
 
 Full workflow automation for GitHub issues using worktrees and AI agents.
 
+By default `start` auto-assigns the issue to `@me`, and PR creation steps
+auto-assign the created PR to `@me`.
+Set `DEEP_WORK_AUTO_ASSIGN=0` (or `WORK_AUTO_ASSIGN=0`) to opt out.
+
 Commands:
   start <issue-number>           Start full workflow for an issue
   pick                          Smart issue selection + start workflow
@@ -64,4 +68,4 @@ case "$cmd" in
     usage >&2
     exit 1
     ;;
-esac
+esac