Fix build logs auto-scroll with double RAF and change detection

Use double requestAnimationFrame to ensure DOM has fully reflowed before
scrolling, and only scroll when log content actually changes.

static/js/app.js

@@ -61,10 +61,12 @@ document.addEventListener("alpine:init", () => {
      */
     scrollToBottom(el) {
       if (el) {
-        // Use requestAnimationFrame for smoother scrolling after DOM update
+        // Use double RAF to ensure DOM has fully updated and reflowed
+        requestAnimationFrame(() => {
           requestAnimationFrame(() => {
             el.scrollTop = el.scrollHeight;
           });
+        });
       }
     },
 
@@ -329,13 +331,17 @@ document.addEventListener("alpine:init", () => {
           `/apps/${this.appId}/deployments/${this.deploymentId}/logs`,
         );
         const data = await res.json();
-        this.logs = data.logs || "No logs available";
+        const newLogs = data.logs || "No logs available";
+        const logsChanged = newLogs !== this.logs;
+        this.logs = newLogs;
         this.status = data.status;
 
-        // Scroll to bottom after update
+        // Scroll to bottom only when content changes
+        if (logsChanged) {
           this.$nextTick(() => {
             Alpine.store("utils").scrollToBottom(this.$refs.logsWrapper);
           });
+        }
 
         // Stop polling if deployment is done
         if (!Alpine.store("utils").isDeploying(data.status)) {