Näytä tarkka virheviesti uploadissa

admin.html

@@ -491,20 +491,22 @@
       const lbl = document.getElementById(labelId);
       lbl.style.opacity = '0.5';
 
-      const resized = await resizeImage(file);
+      let resized;
+      try { resized = await resizeImage(file); } catch (e) { lbl.style.opacity = ''; showToast('⚠️ Kuvan käsittely epäonnistui: ' + e.message); return; }
+
       const formData = new FormData();
       formData.append('file', resized, resized.name || 'image.jpg');
       try {
         const res = await fetch('upload.php', { method: 'POST', body: formData });
-        if (!res.ok) throw new Error(await res.text());
         const data = await res.json();
+        if (data.error) throw new Error(data.error);
         document.getElementById(hiddenId).value = data.url;
         const prev = document.getElementById(previewId);
         prev.src = data.url;
         prev.style.display = 'block';
         lbl.classList.add('has-image');
       } catch (e) {
-        showToast('⚠️ Kuvan lataus epäonnistui. Tuetut muodot: JPG, PNG, GIF, WebP (max 20 MB).');
+        showToast('⚠️ ' + e.message);
       } finally {
         lbl.style.opacity = '';
       }