add(plugin): autofix-bot — DeepSource automated code review

Adapted from PR #23 by @jai-deepsource (DeepSource).
Original: https://github.com/anthropics/claude-plugins-official/pull/23

external_plugins/autofix-bot/scripts/check-autofix.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+if ! command -v autofix &> /dev/null; then
+  echo "Autofix Bot CLI not found. Installing..."
+  curl -fsSL https://autofix.bot/install | sh
+
+  if ! command -v autofix &> /dev/null; then
+    echo "ERROR: Failed to install autofix. Please install manually:" >&2
+    echo "  curl -fsSL https://autofix.bot/install | sh" >&2
+    exit 2
+  fi
+fi
+
+echo "Autofix Bot ready"
+exit 0