fix(frontend): await useAsyncData and initialize state in detail views

Restore await for useAsyncData to ensure data is fetched during SSR
Assign initial data to local refs to prevent empty states on load

frontend/src/views/HabitatDetail.vue

@@ -34,7 +34,7 @@ const detailTabs = computed<TabOption[]>(() => [
   { value: 'history', label: t('history.editHistory') }
 ]);
 
-const { data: initialHabitat } = useAsyncData<HabitatDetail | null>(
+const { data: initialHabitat } = await useAsyncData<HabitatDetail | null>(
   `habitat-detail:${activeHabitatRouteId() ?? 'none'}:${locale.value}`,
   async () => {
     const routeId = activeHabitatRouteId();
@@ -52,6 +52,11 @@ const { data: initialHabitat } = useAsyncData<HabitatDetail | null>(
 );
 
 const initialHabitatLoaded = ref(false);
+if (initialHabitat.value) {
+  habitat.value = initialHabitat.value;
+  initialHabitatLoaded.value = true;
+}
+
 const habitatSeo = computed(() =>
   habitat.value && route.meta.editorModal !== true
     ? resolveSeo({

frontend/src/views/ItemDetail.vue

@@ -73,7 +73,7 @@ const possibleTagEvidenceSections = computed(() => [
   { key: 'neutral', title: t('pages.pokemon.tradingNeutral'), rows: item.value?.possibleTags?.evidence.neutral ?? [] }
 ]);
 
-const { data: initialItem } = useAsyncData<ItemDetail | null>(
+const { data: initialItem } = await useAsyncData<ItemDetail | null>(
   `item-detail:${String(route.name)}:${activeItemRouteId() ?? 'none'}:${locale.value}`,
   async () => {
     const routeId = activeItemRouteId();
@@ -92,6 +92,11 @@ const { data: initialItem } = useAsyncData<ItemDetail | null>(
 );
 
 const initialItemLoaded = ref(false);
+if (initialItem.value) {
+  item.value = initialItem.value;
+  initialItemLoaded.value = true;
+}
+
 const itemSeo = computed(() =>
   item.value && route.meta.editorModal !== true
     ? resolveSeo({

frontend/src/views/PokemonDetail.vue

@@ -41,7 +41,7 @@ const weathers = ['晴天', '阴天', '雨天'];
 const relatedPokemonLimit = 6;
 const pokemonDetailRouteNames = new Set(['pokemon-detail', 'pokemon-edit']);
 
-const { data: initialPokemon } = useAsyncData<PokemonDetail | null>(
+const { data: initialPokemon } = await useAsyncData<PokemonDetail | null>(
   `pokemon-detail:${activePokemonRouteId() ?? 'none'}:${locale.value}`,
   async () => {
     const routeId = activePokemonRouteId();
@@ -59,6 +59,12 @@ const { data: initialPokemon } = useAsyncData<PokemonDetail | null>(
 );
 
 const initialPokemonLoaded = ref(false);
+if (initialPokemon.value) {
+  pokemon.value = initialPokemon.value;
+  relatedHabitatTab.value = habitatTabValue(initialPokemon.value.environment.id);
+  initialPokemonLoaded.value = true;
+}
+
 const pokemonSeo = computed(() =>
   pokemon.value && route.meta.editorModal !== true
     ? resolveSeo({

frontend/src/views/RecipeDetail.vue

@@ -42,7 +42,7 @@ const recipeSubtitle = computed(() => {
   return categoryName ?? t('pages.recipes.detailSubtitle');
 });
 
-const { data: initialRecipe } = useAsyncData<RecipeDetail | null>(
+const { data: initialRecipe } = await useAsyncData<RecipeDetail | null>(
   `recipe-detail:${String(route.params.id)}:${locale.value}`,
   async () => {
     try {
@@ -55,6 +55,11 @@ const { data: initialRecipe } = useAsyncData<RecipeDetail | null>(
 );
 
 const initialRecipeLoaded = ref(false);
+if (initialRecipe.value) {
+  recipe.value = initialRecipe.value;
+  initialRecipeLoaded.value = true;
+}
+
 const recipeSeo = computed(() =>
   recipe.value && route.meta.editorModal !== true
     ? resolveSeo({