feature: Phase5 - Lab Cases inbox + task board

frontend/src/lib/api/cases.ts

@@ -1,6 +1,7 @@
 import { apiClient } from './client';
 import type {
   AssignableMember,
+  CasesFilterOptions,
   LabCaseDetail,
   LabCaseTask,
   ListLabCasesParams,
@@ -25,6 +26,11 @@ export const casesApi = {
     return response.data;
   },
 
+  listFilterOptions: async (): Promise<{ success: boolean; data: CasesFilterOptions }> => {
+    const response = await apiClient.get('/cases/filter-options');
+    return response.data;
+  },
+
   updateTask: async (
     caseId: string,
     taskId: string,