fix: 收口 v0.1 规格缺口

scripts/agentrun

@@ -0,0 +1,20 @@
+#!/usr/bin/env sh
+set -eu
+
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+ROOT_DIR=$(CDPATH= cd -- "$SCRIPT_DIR/.." && pwd)
+
+if [ -n "${BUN_BIN:-}" ] && [ -x "${BUN_BIN:-}" ]; then
+  BUN="$BUN_BIN"
+elif command -v bun >/dev/null 2>&1; then
+  BUN="$(command -v bun)"
+elif [ -n "${HOME:-}" ] && [ -x "${HOME:-}/.bun/bin/bun" ]; then
+  BUN="${HOME:-}/.bun/bin/bun"
+elif [ -x "/root/.bun/bin/bun" ]; then
+  BUN="/root/.bun/bin/bun"
+else
+  printf '%s\n' '{"ok":false,"failureKind":"infra-failed","message":"bun runtime not found; set BUN_BIN or install Bun"}'
+  exit 127
+fi
+
+exec "$BUN" "$ROOT_DIR/scripts/agentrun-cli.ts" "$@"