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>

updates.json

@@ -1,12 +1,12 @@
 {
     "name": "ATT Site Healthcheck",
     "slug": "att-site-healthcheck",
-    "version": "0.1.6",
+    "version": "0.1.7",
     "author": "Steve Hanlon",
     "requires": "6.0",
     "tested": "6.6",
     "requires_php": "7.4",
-    "last_updated": "2026-07-27 08:36:43",
+    "last_updated": "2026-07-27 08:42:03",
     "download_url": "https://git.h12e.com/steve/wp-healthcheck/archive/main.zip",
     "sections": {
         "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.",