Fix camera jumping when opening InfoPanel

Replace setTimeout/debounce with event-based approach:
- Add isInfoLoading computed that tracks all info loading states
- Pass infoLoading prop through CatalogPage to CatalogMap
- Watch infoLoading transition from true->false to trigger fitBounds
- Remove setTimeout hack in favor of proper loading state detection

app/components/page/CatalogPage.vue

@@ -24,6 +24,7 @@
           :hovered-item-id="hoveredId"
           :hovered-item="hoveredItem"
           :related-points="relatedPoints"
+          :info-loading="infoLoading"
           @select-item="onMapSelect"
           @bounds-change="onBoundsChange"
         />
@@ -250,6 +251,7 @@ const props = withDefaults(defineProps<{
   items?: MapItem[]
   showPanel?: boolean
   filterByBounds?: boolean
+  infoLoading?: boolean
   relatedPoints?: Array<{
     uuid: string
     name: string
@@ -266,6 +268,7 @@ const props = withDefaults(defineProps<{
   items: () => [],
   showPanel: false,
   filterByBounds: false,
+  infoLoading: false,
   relatedPoints: () => []
 })