chore: persist activity feed history and improve build versioning

server/src/dashboard.html

@@ -893,6 +893,33 @@
         }
 
         // --- WebSocket Activity Feed ---
+        const MAX_ACTIVITY_HISTORY = 100;
+
+        function saveActivityHistory(time, htmlData) {
+            try {
+                let history = JSON.parse(localStorage.getItem('activityHistory') || '[]');
+                history.push({ time, data: htmlData });
+                if (history.length > MAX_ACTIVITY_HISTORY) history = history.slice(-MAX_ACTIVITY_HISTORY);
+                localStorage.setItem('activityHistory', JSON.stringify(history));
+            } catch(e) {}
+        }
+
+        function loadActivityHistory() {
+            try {
+                const feed = document.getElementById('activity-feed');
+                let history = JSON.parse(localStorage.getItem('activityHistory') || '[]');
+                history.forEach(item => {
+                    const div = document.createElement('div');
+                    div.className = 'feed-entry';
+                    div.innerHTML = `<span class="time">[${item.time}]</span> ${item.data}`;
+                    feed.appendChild(div);
+                });
+                if (history.length > 0) {
+                    feed.scrollTop = feed.scrollHeight;
+                }
+            } catch(e) {}
+        }
+
         function setupWS() {
             const protocol = location.protocol === 'https:' ? 'wss:' : 'ws:';
             const ws = new WebSocket(`${protocol}//${location.host}/ws?client=ui`);
@@ -908,6 +935,8 @@
                         div.innerHTML = `<span class="time">[${time}]</span> ${data.data}`;
                         feed.appendChild(div);
                         
+                        saveActivityHistory(time, data.data);
+                        
                         // Auto-scroll logic
                         const isScrolledToBottom = feed.scrollHeight - feed.clientHeight <= feed.scrollTop + 20;
                         if (isScrolledToBottom) {
@@ -967,6 +996,7 @@
         loadGraph();
         loadTasks();
         loadStickyNotes();
+        loadActivityHistory();
         setupWS();
         
         // Listen to theme toggle changes to update graph font colors