Update app.js

app.js

@@ -1100,7 +1100,12 @@ const API_BASE = window.location.origin;
 /** When Blob is enabled, try Blob before direct POST (0 = any non-empty file). */
 // Avoid forcing tiny image uploads through Blob flow (can fail on some hosts/browsers).
 const NEXUS_BLOB_THRESHOLD_BYTES = 6 * 1024 * 1024;
-const MAX_UPLOAD_BYTES = 100 * 1024 * 1024;
+let MAX_UPLOAD_BYTES = 100 * 1024 * 1024;
+
+function nexusApplyMaxUploadFromMe(data) {
+  const mb = Number(data && data.max_upload_mb);
+  if (Number.isFinite(mb) && mb > 0) MAX_UPLOAD_BYTES = Math.floor(mb * 1024 * 1024);
+}
 
 const NEXUS_COMPOSER_ATTACH_PREFIX = "nexus_composer_attach_v1:";
 
@@ -2919,6 +2924,16 @@ function isVideoFilename(name) {
   return ["mp4", "mov", "webm", "m4v", "avi", "mkv", "mpeg", "mpg", "3gp", "wmv", "ogv", "f4v"].includes(ext);
 }
 
+function isAudioFilename(name) {
+  if (!name) return false;
+  const ext = String(name).split(".").pop()?.toLowerCase() || "";
+  return ext === "mp3";
+}
+
+function isLongMediaAttachment(fileMeta) {
+  return !!(fileMeta && (isVideoFilename(fileMeta.filename) || isAudioFilename(fileMeta.filename)));
+}
+
 function applyThinkingLabel(statusEl, payload) {
   if (!statusEl) return;
   const p = payload || {};
@@ -2927,7 +2942,12 @@ function applyThinkingLabel(statusEl, payload) {
   const lab0 = String(p.label || "").trim();
   if (
     lab0 &&
-    (parseMode === "video" || fs === "Video" || /uploading and analyzing video/i.test(lab0))
+    (parseMode === "video" ||
+      parseMode === "audio" ||
+      fs === "Video" ||
+      fs === "Audio" ||
+      /uploading and analyzing video/i.test(lab0) ||
+      /uploading and analyzing audio/i.test(lab0))
   ) {
     statusEl.textContent = lab0;
     const rootV = statusEl.closest(".ai-thinking-standalone");
@@ -3612,6 +3632,7 @@ async function checkAuth() {
     }
     clearTimeout(to);
     const data = await res.json().catch(() => ({}));
+    nexusApplyMaxUploadFromMe(data);
     if (res.ok && data.logged_in === true) {
       state.isLoggedIn = true;
       state.userEmail = data.email || "";
@@ -5440,10 +5461,12 @@ async function sendChatMessage(message, attachedFiles) {
   thinkingNode.appendChild(typingBubble);
   const statusSr = document.createElement("span");
   statusSr.className = "ai-thinking-status-sr visually-hidden";
-  const hasVideoAttachment = (filesToSend || []).some((f) => isVideoFilename(f && f.filename));
-  statusSr.textContent = hasVideoAttachment
-    ? "Uploading and analyzing video... this may take up to 30 seconds"
-    : "Thinking…";
+  const hasVid = (filesToSend || []).some((f) => isVideoFilename(f && f.filename));
+  const hasAud = (filesToSend || []).some((f) => isAudioFilename(f && f.filename));
+  let srLabel = "Thinking…";
+  if (hasVid) srLabel = "Uploading and analyzing video... this may take up to 30 seconds";
+  else if (hasAud) srLabel = "Uploading and analyzing audio... this may take up to 30 seconds";
+  statusSr.textContent = srLabel;
   thinkingNode.appendChild(statusSr);
   thinkingNode.setAttribute("aria-label", statusSr.textContent);
   chatMessages.appendChild(thinkingNode);
@@ -5727,7 +5750,7 @@ function showUploadLimitPopup() {
     pop.className = "upload-limit-popup";
     document.body.appendChild(pop);
   }
-  pop.textContent = "Max file size is 100MB.";
+  pop.textContent = `Max file size is ${Math.max(1, Math.round(MAX_UPLOAD_BYTES / (1024 * 1024)))}MB.`;
   pop.classList.add("visible");
   if (uploadLimitPopupTimer) clearTimeout(uploadLimitPopupTimer);
   uploadLimitPopupTimer = setTimeout(() => {
@@ -5773,6 +5796,20 @@ function renderFileChips() {
       </div>
       <button type="button" class="file-chip-remove" aria-label="Remove">×</button>
     </div>
+  `;
+      } else if (isAudioFilename(fileData.filename)) {
+        chip.className = "file-chip file-chip-pdf";
+        chip.innerHTML = `
+    <div class="file-chip-inner">
+      <div class="file-chip-name">${escapeHtml(baseName)}</div>
+      <div class="file-chip-row">
+        <span class="file-chip-preview">
+          <span class="file-chip-preview-fallback" style="display:flex">♪</span>
+        </span>
+        <span class="file-chip-type">AUDIO</span>
+      </div>
+      <button type="button" class="file-chip-remove" aria-label="Remove">×</button>
+    </div>
   `;
       } else {
         const previewUrl = fileData.preview_data_url || (
@@ -5975,7 +6012,9 @@ async function uploadSelectedFile(file, fromLanding) {
   if (file.size > MAX_UPLOAD_BYTES) {
     showUploadLimitPopup();
     if (typeof appendAssistantBubble === "function") {
-      appendAssistantBubble("Upload failed: Max file size is 100MB.");
+      appendAssistantBubble(
+        `Upload failed: Max file size is ${Math.max(1, Math.round(MAX_UPLOAD_BYTES / (1024 * 1024)))}MB.`
+      );
     }
     if (fileInput) fileInput.value = "";
     if (fromLanding && landingFileInput) landingFileInput.value = "";
@@ -6488,7 +6527,11 @@ function bindEvents() {
     }
   });
 
-  const ALLOWED_EXTENSIONS = ["pdf", "png", "jpg", "jpeg", "gif", "webp", "heic", "heif"];
+  const ALLOWED_EXTENSIONS = [
+    "pdf", "png", "jpg", "jpeg", "gif", "webp", "heic", "heif",
+    "mp3",
+    "mp4", "mov", "webm", "m4v", "avi", "mkv", "mpeg", "mpg", "3gp", "wmv", "ogv", "f4v",
+  ];
   function isAllowedFile(file) {
     if (!file?.name) return false;
     const ext = file.name.split(".").pop()?.toLowerCase() || "";