add event_date column to event_knowledge and event_predictions tables; update related logic in admin panel and augorWorker

admin.html

@@ -1427,19 +1427,30 @@ function renderIntelGraph() {
     .attr('stroke-opacity', d => 0.2 + (d.count / maxCount) * 0.7)
     .attr('marker-end', 'url(#ig-arrow)');
 
-  // edge labels — only on edges where count >= median, to avoid hub clutter
-  const sortedCounts = linksCopy.map(l => l.count).sort((a, b) => a - b);
-  const medianCount = sortedCounts[Math.floor(sortedCounts.length / 2)] || 1;
+  // hover label — one floating text element that follows mouse
+  const hoverLabel = svg.append('text')
+    .attr('font-size', 11)
+    .attr('fill', '#94a3b8')
+    .attr('pointer-events', 'none')
+    .attr('opacity', 0);
 
-  const linkLabels = linkG.selectAll('text')
-    .data(linksCopy.filter(l => l.count >= medianCount))
-    .join('text')
-    .text(d => d.type)
-    .attr('text-anchor', 'middle')
-    .attr('font-size', d => 8 + Math.round((d.count / maxCount) * 3))
-    .attr('fill', '#475569')
-    .attr('opacity', d => 0.45 + (d.count / maxCount) * 0.45)
-    .attr('pointer-events', 'none');
+  linkLines
+    .on('mouseenter', function(ev, d) {
+      d3.select(this).attr('stroke', '#60a5fa').attr('stroke-opacity', 1);
+      hoverLabel.text(`${d.type}  ×${d.count}`).attr('opacity', 1);
+    })
+    .on('mousemove', function(ev) {
+      const [mx, my] = d3.pointer(ev, svgEl);
+      hoverLabel.attr('x', mx + 10).attr('y', my - 6);
+    })
+    .on('mouseleave', function(ev, d) {
+      d3.select(this)
+        .attr('stroke', '#334155')
+        .attr('stroke-opacity', 0.2 + (d.count / maxCount) * 0.7);
+      hoverLabel.attr('opacity', 0);
+    });
+
+  const linkLabels = { attr: () => {} }; // no-op so tick handler doesnt break
 
 
   // nodes
@@ -1535,10 +1546,6 @@ function renderIntelGraph() {
       .attr('x2', d => d.target.x)
       .attr('y2', d => d.target.y);
 
-    linkLabels
-      .attr('x', d => (d.source.x + d.target.x) / 2)
-      .attr('y', d => (d.source.y + d.target.y) / 2 - 3);
-
     nodeGroups.attr('transform', d => `translate(${d.x},${d.y})`);
   });