feat(mannschaften): align public pages with season query logic

pages/mannschaften/spielplaene.vue

@@ -361,6 +361,9 @@
 <script setup>
 import { ref, onMounted } from 'vue'
 
+const route = useRoute()
+const router = useRouter()
+
 useHead({
   title: 'Spielpläne - Mannschaften - Harheimer TC'
 })
@@ -378,6 +381,19 @@ const seasons = ref([])
 const selectedSeason = ref('')
 const hasLoadedSpielplan = ref(false)
 
+function getCurrentSeasonSlug() {
+  const now = new Date()
+  const year = now.getFullYear()
+  const startYear = now.getMonth() >= 6 ? year : year - 1
+  const endYear = startYear + 1
+  return `${String(startYear).slice(-2)}--${String(endYear).slice(-2)}`
+}
+
+function normalizeSeasonOrDefault(value) {
+  const season = String(value || '').trim()
+  return /^\d{2}--\d{2}$/.test(season) ? season : getCurrentSeasonSlug()
+}
+
 async function fetchCsvText(url) {
   const attempt = async () => {
     const withBuster = `${url}${url.includes('?') ? '&' : '?'}_t=${Date.now()}`
@@ -405,7 +421,7 @@ const loadData = async () => {
 
     const [spielplanResponse, mannschaftenResponse] = await Promise.all([
       fetch(`/api/spielplan${params.toString() ? `?${params.toString()}` : ''}`),
-      fetchCsvText('/api/mannschaften')
+      fetchCsvText(`/api/mannschaften${params.toString() ? `?${params.toString()}` : ''}`)
     ])
     const spielplanResult = await spielplanResponse.json()
 
@@ -494,11 +510,13 @@ const applyMannschaftenResponse = async (csvText) => {
 }
 
 const onSeasonChange = () => {
+  router.replace({ query: { ...route.query, season: selectedSeason.value } })
   spielplanData.value = []
   filteredData.value = []
   headers.value = []
   lastUpdated.value = ''
   hasLoadedSpielplan.value = false
+  loadData()
 }
 
 const filterData = () => {
@@ -841,6 +859,7 @@ const getWettbewerbText = () => {
 }
 
 onMounted(() => {
+  selectedSeason.value = normalizeSeasonOrDefault(route.query.season)
   loadData()
 })