Release 0.1.7 — sidebar step dots track status live (hc-l0j)

After an AJAX status save, repaint the matching sidebar step-list dot instead
of leaving it stale until the next page load. Recolouring the dot's class is
enough for the link text too: the existing `li:has(.dot-done) a` rule turns it
green when done and back to the default blue otherwise.

- Sidebar dots gained a data-step attribute so the save script can find them.
- applyStatus() now also sets the sidebar dot class alongside the header badge
  and escalation banner it already updated.

Plugin-only. Bumps header, ATT_HC_VERSION and updates.json.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

att-site-healthcheck.php

@@ -2,7 +2,7 @@
 /**
  * Plugin Name: ATT Site Healthcheck
  * Description: Walks a technician through a structured WordPress site healthcheck. Steps are drop-in PHP files so adding/removing one is a single file change.
- * Version:     0.1.6
+ * Version:     0.1.7
  * Author:      Steve Hanlon
  * License:     Proprietary
  * License URI: https://git.h12e.com/steve/wp-healthcheck/raw/branch/main/LICENSE
@@ -15,7 +15,7 @@ if (!defined('ABSPATH')) {
     exit;
 }
 
-define('ATT_HC_VERSION', '0.1.6');
+define('ATT_HC_VERSION', '0.1.7');
 define('ATT_HC_PLUGIN_FILE', __FILE__);
 define('ATT_HC_PLUGIN_DIR', plugin_dir_path(__FILE__));
 define('ATT_HC_PLUGIN_URL', plugin_dir_url(__FILE__));