feat: implement API composables for authentication and data fetching

- Add useApiFetch composable for HTTP requests with auth token
- Implement useAuth composable for authentication endpoints
- Add useAdmin composable for admin operations
- Add useOperator composable for operator management
- Add useMembers composable for member data
- Add usePublic composable for public reports
- Add useReports composable for report operations

Co-authored-by: Copilot <[email protected]>

app/composables/usePublic.ts

@@ -0,0 +1,8 @@
+import type { OpenDataReportListResponse } from "~/types/api";
+
+export default function usePublic() {
+  const getOpenDataReports = (query?: { page?: number; per_page?: number }) =>
+      useApiFetch<OpenDataReportListResponse>('/api/v1/open-data/reports', { method: 'GET', query })
+
+  return { getOpenDataReports }
+}