fix: trace debug — show Stranger_NNN for unnamed traces instead of unknown

portal/src/views/ChunkDetailView.vue

@@ -214,7 +214,10 @@
     </div>
 
     <!-- Error -->
-    <div v-else class="text-center py-12 text-red-400">
+    <div v-else-if="error" class="text-center py-12 text-red-400">
+      {{ error }}
+    </div>
+    <div v-else class="text-center py-12 text-gray-500">
       無法載入詳情
     </div>
   </div>
@@ -229,28 +232,28 @@ import { httpFetch, getCurrentConfig } from '@/api/client'
 const route = useRoute()
 const chunkId = ref('')
 const detail = ref<any>(null)
+const error = ref('')
 const loading = ref(false)
 
 const loadDetail = async () => {
-  const uuid = route.params.uuid as string
-  chunkId.value = route.params.chunkId as string
+  const uuid = route.params.file_uuid as string
+  chunkId.value = route.params.chunk_id as string
   loading.value = true
 
   try {
     const config = getCurrentConfig()
-    const url = `${config.api_base_url}/api/v1/file/${uuid}/${chunkId.value}`
+    const url = `${config.api_base_url}/api/v1/file/${uuid}/chunk/${chunkId.value}`
     
     const res = await httpFetch<any>(url)
-    console.log('Response status:', res.status, res.statusText)
     
-    if (!res.ok) {
-      throw new Error(`API error: ${res.status} ${res.statusText}`)
+    if (res && res.chunk_id) {
+      detail.value = res
+    } else {
+      detail.value = null
     }
-    
-    detail.value = res
-  } catch (error) {
-    console.error('Failed to load chunk detail:', error)
-    alert('載入失敗: ' + error)
+  } catch (err) {
+    error.value = '載入失敗: ' + (err as any)?.message || String(err)
+    console.error('Failed to load chunk detail:', err)
   } finally {
     loading.value = false
   }
@@ -316,16 +319,11 @@ const goBack = () => {
     try {
       const data = JSON.parse(saved)
       localStorage.removeItem('searchState')
-      router.push({ 
-        name: 'search', 
-        query: { q: data.query }
-      })
-    } catch {
-      router.back()
-    }
-  } else {
-    router.back()
+      router.push({ name: 'search', query: { q: data.query } })
+      return
+    } catch { /* ignore */ }
   }
+  router.push('/files')
 }
 
 onMounted(() => {