fix: Library thumbnail guard, Search People/Agent modes, People pagination debug

src/views/LibraryView.vue

@@ -210,7 +210,7 @@ function formatDate(date: string) {
 }
 
 async function loadThumbnail(uuid: string) {
-  if (thumbnails.value[uuid] || thumbnailLoading.value.has(uuid)) return
+  if (!uuid || thumbnails.value[uuid] || thumbnailLoading.value.has(uuid)) return
   thumbnailLoading.value.add(uuid)
   try {
     thumbnails.value[uuid] = await invoke('get_thumbnail', { uuid, frame: 30 })

src/views/SearchView.vue

@@ -78,7 +78,28 @@ async function search() {
   loading.value = true
   searched.value = false
   try {
-    results.value = await invoke('search_llm_smart', { query: query.value, limit: 20 })
+    if (mode.value === 'people') {
+      const result: any = await invoke('search_identities', { query: query.value, limit: 50 })
+      results.value = (Array.isArray(result) ? result : []).map((p: any) => ({
+        file_uuid: p.identity_uuid,
+        file_name: p.name,
+        summary: `Identity - ${p.source}`,
+        similarity: 1.0,
+        start_time: 0,
+        end_time: 0
+      }))
+    } else if (mode.value === 'agent') {
+      results.value = [{
+        file_uuid: '',
+        file_name: 'Agent Mode',
+        summary: 'Agent mode is not yet implemented',
+        similarity: 0,
+        start_time: 0,
+        end_time: 0
+      }]
+    } else {
+      results.value = await invoke('search_llm_smart', { query: query.value, limit: 20 })
+    }
     searched.value = true
   } catch (e) {
     console.error('Search failed:', e)