前台競賽功能修復

contexts/competition-context.tsx

@@ -122,21 +122,29 @@ export function CompetitionProvider({ children }: { children: ReactNode }) {
   const [teams, setTeams] = useState<Team[]>(mockTeams)
   const [proposals, setProposals] = useState<Proposal[]>(mockProposals)
 
-  // 載入當前競賽
+  // 載入所有競賽和當前競賽
   useEffect(() => {
-    const loadCurrentCompetition = async () => {
+    const loadCompetitions = async () => {
       try {
-        const response = await fetch('/api/competitions/current')
-        const data = await response.json()
-        if (data.success && data.data) {
-          setCurrentCompetition(data.data)
+        // 載入所有競賽
+        const competitionsResponse = await fetch('/api/competitions')
+        const competitionsData = await competitionsResponse.json()
+        if (competitionsData.success && competitionsData.data) {
+          setCompetitions(competitionsData.data)
+        }
+
+        // 載入當前競賽
+        const currentResponse = await fetch('/api/competitions/current')
+        const currentData = await currentResponse.json()
+        if (currentData.success && currentData.data) {
+          setCurrentCompetition(currentData.data)
         }
       } catch (error) {
-        console.error('載入當前競賽失敗:', error)
+        console.error('載入競賽數據失敗:', error)
       }
     }
 
-    loadCurrentCompetition()
+    loadCompetitions()
   }, [])
 
   // Load judge scores from localStorage