Add fixed nginx conf and upload tweaks

static/css/quote_upload.css

@@ -21,6 +21,7 @@ body {
     min-height: 100vh;
     background: white;
     padding: 16px;
+    padding-bottom: 200px; /* Reserve space for progress bar and files */
     display: flex;
     flex-direction: column;
 }

static/js/quote_upload.js

@@ -78,6 +78,11 @@ submitBtn.addEventListener('click', async () => {
     progressContainer.style.display = 'block';
     progressFill.style.width = '0%';
     progressMessage.textContent = 'Starting...';
+    
+    // Scroll to progress bar so it's visible (for Google Pages iframe compatibility)
+    setTimeout(() => {
+        progressContainer.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
+    }, 100);
 
     try {
         // Create FormData