Changeset 0.21.3 (#89)

src/js/app.js

@@ -173,6 +173,10 @@ async function startApp() {
     UI.restoreSidebar();
     await loadSettings();
 
+    // Initialize surface system (v0.21.3) — must happen before extensions
+    // so that extensions can register surfaces during init().
+    if (typeof Surfaces !== 'undefined') Surfaces.init();
+
     // Load extensions BEFORE chats so block renderers (mermaid, katex, csv, diff)
     // are registered when messages are first rendered.
     try {
@@ -198,6 +202,7 @@ async function startApp() {
     await initBanners();
     initAttachments();
     if (typeof ToolsToggle !== 'undefined') ToolsToggle.init();
+    if (typeof REPL !== 'undefined') REPL.init();  // v0.21.3: admin-gated REPL tab
     if (typeof KnowledgeUI !== 'undefined') {
         KnowledgeUI.init();
     } else {