refactor(pricing): make the service the only price source

Price lists, annual tariffs and per-branch price overrides each answered
"what does this service cost?" differently, so a single date could carry
several answers and nobody could say which one was right. Price now lives
only on ServiceItem.price_rials, edited from the services page.

- drop PriceList/PriceListItem, their repositories and the seven
  /api/v1/price-list(s) endpoints; PricingController keeps only quote and
  the appointment price snapshot
- drop Tariff, TariffRepository, TariffService and the two
  /service-items/{uuid}/tariffs endpoints; creating or repricing a service
  no longer upserts a current-year tariff
- drop price_rials from ServiceBranchOverride; the entity stays for its
  duration columns, which DurationCalculator and ServiceSelectionValidator
  still read
- InvoiceService reads the item price directly
- PricingEngine collapses to a single source; breakdown.sources always
  reports service_item, keeping the response contract intact
- remove the price-lists admin page, its route and settings-menu entry, the
  tariff modal and the service detail tariffs tab; useAppointmentInvoice
  moves to its own hook file

Migration drops price_lists, price_list_items, service_tariffs and the
override price column.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/ClinicService/Entity/ServiceBranchOverride.php

@@ -9,7 +9,9 @@ use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Uid\Uuid;
 
 /**
- * قیمت و مدتِ اختصاصیِ یک سرویس در یک شعبه.
+ * مدتِ اختصاصیِ یک سرویس در یک شعبه.
+ *
+ * قیمت اینجا نیست: تنها منبع قیمت `ServiceItem::priceRials` است.
  *
  * «شعبه» همان `doctor_addresses` است ({@see docs/new_feture/taskes/_shared/branch-is-doctor-address.md}).
  * هر ستون تهی‌پذیر است و `null` یعنی «همان مقدار خودِ سرویس» — نه صفر.
@@ -38,9 +40,6 @@ class ServiceBranchOverride
     #[ORM\JoinColumn(name: 'address_id', referencedColumnName: 'id', nullable: false, onDelete: 'CASCADE')]
     private DoctorAddress $address;
 
-    #[ORM\Column(name: 'price_rials', type: 'bigint', nullable: true)]
-    private ?int $priceRials = null;
-
     #[ORM\Column(name: 'solo_duration_minutes', type: 'smallint', nullable: true)]
     private ?int $soloDurationMinutes = null;
 
@@ -68,11 +67,9 @@ class ServiceBranchOverride
     public function getUuid(): string                   { return $this->uuid; }
     public function getItem(): ServiceItem              { return $this->item; }
     public function getAddress(): DoctorAddress         { return $this->address; }
-    public function getPriceRials(): ?int               { return $this->priceRials === null ? null : (int) $this->priceRials; }
     public function getSoloDurationMinutes(): ?int      { return $this->soloDurationMinutes; }
     public function getAdditionalDurationMinutes(): ?int { return $this->additionalDurationMinutes; }
 
-    public function setPriceRials(?int $v): self                { $this->priceRials = $v; $this->touch(); return $this; }
     public function setSoloDurationMinutes(?int $v): self       { $this->soloDurationMinutes = $v; $this->touch(); return $this; }
     public function setAdditionalDurationMinutes(?int $v): self { $this->additionalDurationMinutes = $v; $this->touch(); return $this; }
 
@@ -85,7 +82,6 @@ class ServiceBranchOverride
             'item_uuid'                   => $this->item->getUuid(),
             'address_uuid'                => $this->address->getUuid(),
             'address_name'                => $this->address->getName(),
-            'price_rials'                 => $this->getPriceRials(),
             'solo_duration_minutes'       => $this->soloDurationMinutes,
             'additional_duration_minutes' => $this->additionalDurationMinutes,
         ];