demo: load embedding-service in demo index

Author: SorraTheOrc

web/demo/index.html

@@ -133,6 +133,7 @@ <h1>InkJS Smoke Demo</h1>
   <!-- AI Writer modules -->
   <script src="js/lore-assembler.js"></script>
   <script src="js/director-config-loader.js"></script>
+  <script src="js/embedding-service.js"></script>
   <script src="js/prompt-engine.js"></script>
   <script src="js/llm-adapter.js"></script>
   <script src="js/api-key-manager.js"></script>