feat: media API (video/bbox/thumbnail), UUID unification, dot matrix text, portal fixes, API dictionary V1.3

portal/src/views/FaceCandidatesView.vue

@@ -64,7 +64,7 @@
         >
           <div class="aspect-square bg-gray-700 flex items-center justify-center overflow-hidden">
             <img 
-              :src="getThumbnailUrl(face.id)"
+              :src="getThumbnailUrl(face)"
               alt="Face thumbnail"
               class="w-full h-full object-cover"
               loading="lazy"
@@ -135,9 +135,11 @@ const pageSize = ref(20)
 const minConfidence = ref(0.8)
 const selectedFaces = ref<number[]>([])
 
-const getThumbnailUrl = (faceId: number): string => {
+const getThumbnailUrl = (face: FaceCandidate): string => {
   const config = getCurrentConfig()
-  return `${config.api_base_url}/api/v1/faces/${faceId}/thumbnail`
+  if (!face.bbox) return ''
+  const b = face.bbox
+  return `${config.api_base_url}/api/v1/file/${face.file_uuid}/thumbnail?frame=${face.frame_number}&x=${b.x}&y=${b.y}&w=${b.width}&h=${b.height}`
 }
 
 const onThumbnailError = (event: Event) => {