v0.4.2: host preview icons on OSS for slim Pages deploys.

Add STATIC_ASSET_BASE so Cloudflare Pages ships ~2MB HTML/JS/data; icons served from climperor OSS via _oss_static_assets.py. New machines can deploy without local fetch scripts.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/relations/index.html

@@ -70,8 +70,8 @@
 
   <section class="detail" id="detail" aria-live="polite"></section>
 
-  <script src="/config.js?v=0.4.1"></script>
-  <script src="/router.js?v=0.4.1"></script>
-  <script src="/app.js?v=0.4.1"></script>
+  <script src="/config.js?v=0.4.2"></script>
+  <script src="/router.js?v=0.4.2"></script>
+  <script src="/app.js?v=0.4.2"></script>
 </body>
 </html>