feat: add patient appointment interface and endpoints

- Introduced `PatientAppointment` interface to define appointment structure.
- Implemented `findByUserAndDoctorIds` method in `AppointmentRepository` to retrieve appointments for a user filtered by doctor IDs.
- Added `acceptedDoctorIdsByClinic` method in `ClinicDoctorInvitationRepository` to get accepted doctor IDs for a clinic.
- Created new endpoint in `PatientController` to fetch appointments for a patient, ensuring only relevant doctors' appointments are displayed.

src/Appointment/Repository/AppointmentRepository.php

@@ -128,6 +128,29 @@ class AppointmentRepository extends ServiceEntityRepository
         return $this->findBy($criteria, ['slotStart' => 'DESC']);
     }
 
+    /**
+     * نوبت‌های یک بیمار (کاربر) که با پزشک(های) مشخص گرفته شده‌اند — برای نمایش در
+     * پروندهٔ بیمار. اگر لیست پزشک خالی باشد، آرایهٔ خالی برمی‌گرداند.
+     *
+     * @param int[] $doctorIds
+     * @return Appointment[]
+     */
+    public function findByUserAndDoctorIds(User $user, array $doctorIds): array
+    {
+        if ($doctorIds === []) {
+            return [];
+        }
+
+        return $this->createQueryBuilder('a')
+            ->where('a.user = :user')
+            ->andWhere('a.doctor IN (:doctorIds)')
+            ->setParameter('user', $user)
+            ->setParameter('doctorIds', $doctorIds)
+            ->orderBy('a.slotStart', 'DESC')
+            ->getQuery()
+            ->getResult();
+    }
+
     /** Whether the user had a confirmed appointment with this doctor within the last $sinceDays days. */
     public function hasRecentConfirmed(User $user, Doctor $doctor, int $sinceDays = 30): bool
     {