fix: store appointment address from schedule and auto-add patient to clinic

Appointments now persist address_id resolved from the weekly-schedule
session (location_id) across all booking paths (online, secretary, admin).
On confirm, the patient is added to the clinic owning that address, or to
the doctor's single clinic as fallback. Weekly-schedule create/update now
requires location_id on every active session. PatientSession exposes
doctor_uuid/doctor_name so clinic records show which doctor each visit is for.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/Appointment/Entity/Appointment.php

@@ -83,6 +83,9 @@ class Appointment
     #[ORM\Column(name: 'patient_reason', type: 'text', nullable: true)]
     private ?string $patientReason = null;
 
+    #[ORM\Column(name: 'address_id', type: 'integer', nullable: true)]
+    private ?int $addressId = null;
+
     #[ORM\Column(name: 'created_at', type: 'integer')]
     private int $createdAt;
 
@@ -115,8 +118,10 @@ class Appointment
     public function getPatientNationalCode(): ?string { return $this->patientNationalCode; }
     public function getPatientGender(): ?string { return $this->patientGender; }
     public function getPatientReason(): ?string { return $this->patientReason; }
+    public function getAddressId(): ?int { return $this->addressId; }
 
     public function setNote(?string $v): self { $this->note = $v; return $this; }
+    public function setAddressId(?int $v): self { $this->addressId = $v; return $this; }
     public function setPatientName(?string $v): self { $this->patientName = $v; return $this; }
     public function setPatientMobile(?string $v): self { $this->patientMobile = $v; return $this; }
     public function setPatientNationalCode(?string $v): self { $this->patientNationalCode = $v; return $this; }
@@ -166,6 +171,7 @@ class Appointment
                 ),
             ],
             'address'    => $firstAddress?->toArray(),
+            'address_id' => $this->addressId,
             'user'       => [
                 'uuid'   => $this->user->getUuid(),
                 'mobile' => $this->user->getMobileNumber(),