feat(scheduling): add frontend types and API client

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

src/modules/scheduling/api.ts

@@ -0,0 +1,23 @@
+import { fetchJson } from '../../auth/api-client';
+import type { SchedulingResponse } from './types';
+
+const BASE = '/api/scheduling';
+
+export async function fetchSuggestions(targetId?: number): Promise<SchedulingResponse> {
+  const params = new URLSearchParams();
+  if (targetId !== undefined) params.set('targetId', String(targetId));
+  const qs = params.toString();
+  return fetchJson<SchedulingResponse>(`${BASE}/suggestions${qs ? `?${qs}` : ''}`);
+}
+
+export async function sendNotify(body: {
+  suggestionId: string;
+  currentPlate: string;
+  candidatePlate: string;
+}): Promise<{ success: boolean; message: string }> {
+  return fetchJson<{ success: boolean; message: string }>(`${BASE}/notify`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(body),
+  });
+}