Add debug logging to media browser fetch

Log response status, raw data, and item count to diagnose
why uploaded images don't appear in media browser grid.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/core/src/visual-editing/toolbar.ts

@@ -1065,9 +1065,14 @@ export function renderToolbar(config: ToolbarConfig): string {
 
     // Fetch media
     ecFetch("/_emdash/api/media?mimeType=image/&limit=30", { credentials: "same-origin" })
-    .then(function(r) { return r.json(); })
+    .then(function(r) {
+      console.log("[emdash] Media fetch response status:", r.status);
+      return r.json();
+    })
     .then(function(data) {
+      console.log("[emdash] Media fetch data:", JSON.stringify(data));
       var items = data.items || [];
+      console.log("[emdash] Items count:", items.length);
       var loadingEl = browser.querySelector(".emdash-img-loading");
       if (loadingEl) loadingEl.remove();
 
@@ -1081,6 +1086,7 @@ export function renderToolbar(config: ToolbarConfig): string {
 
       var grid = document.createElement("div");
       grid.className = "emdash-img-grid";
+      console.log("[emdash] Created grid element, appending", items.length, "items");
 
       items.forEach(function(item) {
         var thumb = document.createElement("div");