Add monster scale-up animation during combat camera zoom

Monster marker now grows 3x its size in sync with the camera
flyTo animation when initiating combat, creating a more dramatic
zoom-in effect.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

index.html

@@ -2293,6 +2293,13 @@
             transform: scale(0.95);
             background: radial-gradient(circle, rgba(255,100,100,0.4) 0%, rgba(255,100,100,0) 70%);
         }
+        .monster-marker.combat-zoom-in {
+            animation: monster-combat-zoom 1.2s ease-in-out forwards;
+        }
+        @keyframes monster-combat-zoom {
+            0% { transform: scale(1); }
+            100% { transform: scale(3); }
+        }
         .monster-icon {
             width: 50px;
             height: 50px;
@@ -15802,6 +15809,12 @@
             if (clickedMonster.position) {
                 const monsterPos = [clickedMonster.position.lng, clickedMonster.position.lat];
 
+                // Scale up the monster marker during zoom animation
+                const monsterMarkerEl = document.querySelector(`.monster-marker[data-monster-id="${clickedMonster.id}"]`);
+                if (monsterMarkerEl) {
+                    monsterMarkerEl.classList.add('combat-zoom-in');
+                }
+
                 // Fly to monster with dramatic zoom and pitch
                 map.flyTo({
                     center: monsterPos,