feat: integrate AI growth analyst experience

src/lib/api/client.ts

@@ -11,6 +11,7 @@ export type SessionStatus = components['schemas']['SessionStatus'];
 export type DetailView = components['schemas']['DetailView'];
 export type FailureStage = components['schemas']['FailureStage'];
 export type Problem = components['schemas']['Problem'];
+export type GrowthReport = components['schemas']['GrowthReport'];
 
 const apiBase = (import.meta.env.PUBLIC_API_BASE_URL || '/api/v1').replace(/\/$/, '');
 
@@ -119,6 +120,23 @@ export const api = {
   sessionDetail(sessionId: string) {
     return request<SessionDetail>(`/analytics/sessions/${encodeURIComponent(sessionId)}`);
   },
+  latestGrowthReport(terminalId?: string) {
+    const query = terminalId ? `?terminalId=${encodeURIComponent(terminalId)}` : '';
+    return request<GrowthReport>(`/analytics/growth-reports/latest${query}`);
+  },
+  createGrowthReport(csrfToken: string, options: { terminalId?: string; refresh?: boolean } = {}) {
+    return request<GrowthReport>('/analytics/growth-reports', {
+      method: 'POST',
+      headers: {
+        'X-CSRF-Token': csrfToken,
+        'Idempotency-Key': crypto.randomUUID(),
+      },
+      body: JSON.stringify(options),
+    });
+  },
+  growthReport(reportId: string) {
+    return request<GrowthReport>(`/analytics/growth-reports/${encodeURIComponent(reportId)}`);
+  },
   exportUrl(
     periodId: string,
     view: DetailView,