新增 logo、優化 AI 問答

contexts/competition-context.tsx

@@ -133,14 +133,20 @@ export function CompetitionProvider({ children }: { children: ReactNode }) {
         const competitionsData = await competitionsResponse.json()
         console.log('📋 競賽API回應:', competitionsData)
         
-        if (competitionsData.success && competitionsData.data) {
-          // 確保每個競賽都有judges屬性
-          const competitionsWithJudges = competitionsData.data.map((comp: any) => ({
-            ...comp,
-            judges: comp.judges || []
-          }))
-          setCompetitions(competitionsWithJudges)
-          console.log('✅ 競賽數據載入成功:', competitionsWithJudges.length, '個競賽')
+        if (competitionsData.success) {
+          if (competitionsData.data && competitionsData.data.length > 0) {
+            // 確保每個競賽都有judges屬性
+            const competitionsWithJudges = competitionsData.data.map((comp: any) => ({
+              ...comp,
+              judges: comp.judges || []
+            }))
+            setCompetitions(competitionsWithJudges)
+            console.log('✅ 競賽數據載入成功:', competitionsWithJudges.length, '個競賽')
+          } else {
+            // 沒有競賽資料是正常情況，不報錯
+            setCompetitions([])
+            console.log('ℹ️ 暫無競賽數據')
+          }
         } else {
           console.error('❌ 競賽數據載入失敗:', competitionsData.message)
           // 設置空數組以避免undefined錯誤
@@ -152,14 +158,20 @@ export function CompetitionProvider({ children }: { children: ReactNode }) {
         const currentData = await currentResponse.json()
         console.log('🏆 當前競賽API回應:', currentData)
         
-        if (currentData.success && currentData.data) {
-          // 確保當前競賽也有judges屬性
-          const currentCompetitionWithJudges = {
-            ...currentData.data,
-            judges: currentData.data.judges || []
+        if (currentData.success) {
+          if (currentData.data) {
+            // 確保當前競賽也有judges屬性
+            const currentCompetitionWithJudges = {
+              ...currentData.data,
+              judges: currentData.data.judges || []
+            }
+            setCurrentCompetition(currentCompetitionWithJudges)
+            console.log('✅ 當前競賽載入成功:', currentCompetitionWithJudges.name)
+          } else {
+            // 沒有當前競賽是正常情況，不報錯
+            setCurrentCompetition(null)
+            console.log('ℹ️ 暫無當前競賽')
           }
-          setCurrentCompetition(currentCompetitionWithJudges)
-          console.log('✅ 當前競賽載入成功:', currentCompetitionWithJudges.name)
         } else {
           console.error('❌ 當前競賽載入失敗:', currentData.message)
         }
@@ -170,9 +182,14 @@ export function CompetitionProvider({ children }: { children: ReactNode }) {
         const judgesData = await judgesResponse.json()
         console.log('評審API回應:', judgesData)
         
-        if (judgesData.success && judgesData.data) {
-          setJudges(judgesData.data)
-          console.log('✅ 評審數據載入成功:', judgesData.data.length, '個評審')
+        if (judgesData.success) {
+          if (judgesData.data && judgesData.data.length > 0) {
+            setJudges(judgesData.data)
+            console.log('✅ 評審數據載入成功:', judgesData.data.length, '個評審')
+          } else {
+            setJudges([])
+            console.log('ℹ️ 暫無評審數據')
+          }
         } else {
           console.error('❌ 評審數據載入失敗:', judgesData.message)
           setJudges([])