fix(appointments): file the case file on every confirmation path

Confirming an appointment was supposed to create the patient's record and its
session, and PatientService already knew how. Only two of the five paths that
confirm an appointment ever called it, and the one that mattered most did not:
a booking paid for online was confirmed inside the payment callback, which
never ran the side-effects. Every Nobat724 booking therefore went unfiled — 7
confirmed appointments in dev had no session at all.

The side-effects now run through AppointmentConfirmationService, which every
path calls: the payment callback, both PATCH endpoints, and panel/admin
bookings. Creating the record can no longer roll back a confirmation or a
payment; a failure is logged and can be repaired with the new
app:appointment:backfill-sessions command.

Two related defects fixed along the way:

- A doctor working at a clinic got two records for one appointment, one under
  the doctor and one under the clinic, so a single visit's revenue was counted
  twice. The booking context now decides, and it decides once.
- That context was inferred from address_id, falling back to "the doctor's only
  clinic" — a guess that files an appointment under the wrong practice now that
  schedules are per-context. It is stored as appointments.clinic_id instead.

Panel and admin bookings were left pending forever: nothing confirmed them and
no payment was expected. They are created confirmed.

Repeat confirmations no longer duplicate the session; an archived one still
counts as filed, so archiving a mistaken visit does not resurrect it.

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

src/Appointment/Entity/Appointment.php

@@ -127,6 +127,15 @@ class Appointment
     #[ORM\Column(name: 'address_id', type: 'integer', nullable: true)]
     private ?int $addressId = null;
 
+    /**
+     * محیط رزرو: null یعنی مطب شخصی پزشک، مقدار یعنی همان کلینیک. مبنای واحدِ
+     * تشخیص پرونده — از روی آدرس حدس زده نمی‌شود، چون با چند برنامهٔ هم‌زمان
+     * حدس‌زدن یعنی چسباندنِ خاموشِ نوبت به پروندهٔ محیط اشتباه.
+     */
+    #[ORM\ManyToOne(targetEntity: \App\Clinic\Entity\Clinic::class)]
+    #[ORM\JoinColumn(name: 'clinic_id', nullable: true, onDelete: 'SET NULL')]
+    private ?\App\Clinic\Entity\Clinic $clinic = null;
+
     #[ORM\Column(name: 'booking_representation_id', type: 'integer', nullable: true)]
     private ?int $bookingRepresentationId = null;
 
@@ -217,11 +226,13 @@ class Appointment
     public function getPatientGender(): ?string { return $this->patientGender; }
     public function getPatientReason(): ?string { return $this->patientReason; }
     public function getAddressId(): ?int { return $this->addressId; }
+    public function getClinic(): ?\App\Clinic\Entity\Clinic { return $this->clinic; }
     public function getBookingRepresentationId(): ?int { return $this->bookingRepresentationId; }
 
     public function setNote(?string $v): self { $this->note = $v; return $this; }
     public function setBookingRepresentationId(?int $v): self { $this->bookingRepresentationId = $v; return $this; }
     public function setAddressId(?int $v): self { $this->addressId = $v; return $this; }
+    public function setClinic(?\App\Clinic\Entity\Clinic $v): self { $this->clinic = $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; }