feat(web): useSearch infinite query + useDebouncedValue + MSW search handler

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/src/test/fixtures.ts

@@ -63,6 +63,27 @@ export const personAuthorities: AuthorityView[] = [
   { id: "a-ada", kind: "person", external_uri: null, labels: [{ lang: "en", label: "Ada Lovelace" }] },
 ];
 
+export type SearchHitView = components["schemas"]["SearchHitView"];
+
+export const searchHits: SearchHitView[] = [
+  {
+    id: amphora.id,
+    object_number: "2019.4.12",
+    object_name: "Bronze figurine",
+    brief_description: "A small cast figure.",
+    visibility: "public",
+    snippet: "cast bronze with green patina",
+  },
+  ...Array.from({ length: 24 }, (_, i) => ({
+    id: `s-${i + 2}`,
+    object_number: `N-${i + 2}`,
+    object_name: `Object ${i + 2}`,
+    brief_description: null,
+    visibility: "internal",
+    snippet: null,
+  })),
+];
+
 export type VocabularyView = components["schemas"]["VocabularyView"];
 
 export const vocabularies: VocabularyView[] = [