[HOTFIX-DOMAIN] badge-widget: normalize openmatrix.io defaults to openmatrix-ai.com

The embed widget's fallback apiBase/verifyBase (and the doc-comment src) used
the openmatrix.io variant; the canonical project domain is openmatrix-ai.com.
data-api-base/data-verify-base overrides unchanged. Only content edit of the
hotfix — the typo string 'openmatrx' had zero content hits repo-wide (see
Matrix/DOMAIN_HOTFIX_REPORT.md).

Author: Neo

web/badge-widget.js

@@ -3,7 +3,7 @@
  *
  * Self-contained, zero-dependency embeddable widget.
  * Projects include:
- *   <script src="https://api.openmatrix.io/badge/widget.js"
+ *   <script src="https://api.openmatrix-ai.com/badge/widget.js"
  *           data-badge="GLASSWING-2026-0001"></script>
  *
  * The widget renders an inline badge that links to the full
@@ -30,10 +30,10 @@
 
   var apiBase =
     currentScript.getAttribute("data-api-base") ||
-    "https://api.openmatrix.io";
+    "https://api.openmatrix-ai.com";
   var verifyBase =
     currentScript.getAttribute("data-verify-base") ||
-    "https://openmatrix.io";
+    "https://openmatrix-ai.com";
 
   // ── Create a scoped container ────────────────────────────────