feat(GRO-1177): add GET /api/pets/:id/profile-summary endpoint

Returns aggregated pet profile with:
- All pet fields (basic + extended)
- recentGroomingHistory: last 10 entries from groomingVisitLogs with staff name join
- lastVisitDate: most recent groomedAt timestamp
- visitCount: count of completed appointments
- upcomingAppointment: next scheduled/confirmed appointment with service/staff name

Enforces same groomer RBAC as GET /:id. Returns 404 for non-existent pets.
Adds PetProfileSummary, GroomingHistoryEntry, and UpcomingAppointment types.
Adds unit tests covering: 404, 403, aggregated profile, empty history, no upcoming appt.
Updates UAT_PLAYBOOK.md §3 with TC-API-3.8 and TC-API-3.9.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

packages/types/src/index.ts

@@ -225,3 +225,34 @@ export interface MedicalAlert {
 }
 
 export type CoatType = "smooth" | "double" | "curly" | "wire" | "long" | "hairless";
+
+export interface GroomingHistoryEntry {
+  id: string;
+  petId: string;
+  appointmentId: string | null;
+  staffId: string | null;
+  staffName: string | null;
+  cutStyle: string | null;
+  productsUsed: string | null;
+  notes: string | null;
+  groomedAt: string;
+  createdAt: string;
+}
+
+export interface UpcomingAppointment {
+  id: string;
+  serviceId: string;
+  serviceName: string;
+  staffId: string | null;
+  staffName: string | null;
+  startTime: string;
+  endTime: string;
+  status: AppointmentStatus;
+}
+
+export interface PetProfileSummary extends Pet {
+  recentGroomingHistory: GroomingHistoryEntry[];
+  lastVisitDate: string | null;
+  visitCount: number;
+  upcomingAppointment: UpcomingAppointment | null;
+}