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>

assets/admin/hooks/useAppointmentInvoice.ts

@@ -0,0 +1,38 @@
+import { useQuery } from '@tanstack/react-query';
+import { api, type ApiResponse } from '../lib/api';
+
+export interface PriceSnapshotLine {
+  label: string;
+  rials: number;
+  kind?: string;
+}
+
+export interface PriceSnapshot {
+  base_rials: number;
+  items_rials: number;
+  discount_rials: number;
+  insurance_base_rials: number;
+  insurance_supplementary_rials: number;
+  tax_rials: number;
+  final_rials: number;
+  deposit_rials: number;
+  created_at?: number;
+  breakdown: {
+    discounts: PriceSnapshotLine[];
+    sources: Record<string, unknown>;
+  };
+}
+
+/** فاکتور یک نوبت — همان اعداد لحظهٔ ثبت، حتی اگر قیمت سرویس بعداً عوض شده باشد. */
+export function useAppointmentInvoice(appointmentUuid: string | undefined) {
+  const query = useQuery({
+    queryKey: ['appointment-invoice', appointmentUuid],
+    queryFn: () =>
+      api.get<ApiResponse<PriceSnapshot>>(`/api/v1/appointment/${appointmentUuid}/price-snapshot`),
+    enabled: !!appointmentUuid,
+    // نوبتِ بدون فاکتور ۴۰۴ می‌دهد و آن خطا نیست، یعنی «هنوز ثبت نشده».
+    retry: false,
+  });
+
+  return { invoice: query.data?.data, loading: query.isLoading, missing: query.isError };
+}

assets/admin/hooks/usePriceLists.ts

@@ -1,131 +0,0 @@
-import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
-import { toast } from 'sonner';
-import { api, ApiError, type ApiResponse } from '../lib/api';
-
-/**
- * لیست قیمت بازه‌دار و فاکتور نوبت.
- *
- * لیست تا فعال نشده هیچ اثری ندارد؛ ساختن پیش‌نویس نباید قیمت امروز را عوض کند. پس
- * `create` و `activate` عمداً دو عمل جدا هستند، نه یک فرم با تیک «فعال».
- */
-export interface PriceListItem {
-  service_uuid: string;
-  service_name?: string;
-  price_rials: number;
-}
-
-export interface PriceList {
-  uuid: string;
-  name: string;
-  address_uuid: string | null;
-  address_name: string | null;
-  valid_from: number;
-  valid_to: number;
-  active: boolean;
-  items: PriceListItem[];
-  created_at: number;
-}
-
-export interface PriceSnapshotLine {
-  label: string;
-  rials: number;
-  kind?: string;
-}
-
-export interface PriceSnapshot {
-  base_rials: number;
-  items_rials: number;
-  discount_rials: number;
-  insurance_base_rials: number;
-  insurance_supplementary_rials: number;
-  tax_rials: number;
-  final_rials: number;
-  deposit_rials: number;
-  created_at?: number;
-  breakdown: {
-    discounts: PriceSnapshotLine[];
-    sources: Record<string, unknown>;
-  };
-}
-
-const KEY = ['price-lists'];
-
-function fail(e: unknown, fallback: string) {
-  toast.error(e instanceof ApiError ? e.message : fallback);
-}
-
-export function usePriceLists() {
-  const qc = useQueryClient();
-
-  const query = useQuery({
-    queryKey: KEY,
-    queryFn: () => api.get<ApiResponse<PriceList[]>>('/api/v1/price-lists'),
-  });
-
-  const invalidate = () => qc.invalidateQueries({ queryKey: KEY });
-
-  const create = useMutation({
-    mutationFn: (body: Record<string, unknown>) =>
-      api.post<ApiResponse<PriceList>>('/api/v1/price-lists', body),
-    onSuccess: () => {
-      toast.success('لیست قیمت ساخته شد — تا فعال نشود اثری ندارد');
-      invalidate();
-    },
-    onError: (e) => fail(e, 'ساخت لیست قیمت ناموفق بود'),
-  });
-
-  const update = useMutation({
-    mutationFn: ({ uuid, body }: { uuid: string; body: Record<string, unknown> }) =>
-      api.patch<ApiResponse<PriceList>>(`/api/v1/price-list/${uuid}`, body),
-    onSuccess: () => {
-      toast.success('لیست قیمت به‌روزرسانی شد');
-      invalidate();
-    },
-    onError: (e) => fail(e, 'به‌روزرسانی ناموفق بود'),
-  });
-
-  const setItems = useMutation({
-    mutationFn: ({ uuid, items }: { uuid: string; items: PriceListItem[] }) =>
-      api.put<ApiResponse<PriceList>>(`/api/v1/price-list/${uuid}/items`, { items }),
-    onSuccess: () => {
-      toast.success('قیمت‌ها ذخیره شد');
-      invalidate();
-    },
-    onError: (e) => fail(e, 'ذخیرهٔ قیمت‌ها ناموفق بود'),
-  });
-
-  /** تداخل بازه با لیست فعالِ هم‌دامنه اینجا ۴۲۲ می‌گیرد؛ پیام سرور دقیق‌تر است. */
-  const activate = useMutation({
-    mutationFn: (uuid: string) => api.post<ApiResponse<PriceList>>(`/api/v1/price-list/${uuid}/activate`, {}),
-    onSuccess: () => {
-      toast.success('لیست قیمت فعال شد');
-      invalidate();
-    },
-    onError: (e) => fail(e, 'فعال‌سازی ناموفق بود'),
-  });
-
-  const remove = useMutation({
-    mutationFn: (uuid: string) => api.delete<ApiResponse<null>>(`/api/v1/price-list/${uuid}`),
-    onSuccess: () => {
-      toast.success('لیست قیمت حذف شد');
-      invalidate();
-    },
-    onError: (e) => fail(e, 'حذف ناموفق بود'),
-  });
-
-  return { lists: query.data?.data ?? [], loading: query.isLoading, create, update, setItems, activate, remove };
-}
-
-/** فاکتور یک نوبت — همان اعداد لحظهٔ ثبت، حتی اگر قیمت‌ها بعداً عوض شده باشند. */
-export function useAppointmentInvoice(appointmentUuid: string | undefined) {
-  const query = useQuery({
-    queryKey: ['appointment-invoice', appointmentUuid],
-    queryFn: () =>
-      api.get<ApiResponse<PriceSnapshot>>(`/api/v1/appointment/${appointmentUuid}/price-snapshot`),
-    enabled: !!appointmentUuid,
-    // نوبتِ بدون فاکتور ۴۰۴ می‌دهد و آن خطا نیست، یعنی «هنوز ثبت نشده».
-    retry: false,
-  });
-
-  return { invoice: query.data?.data, loading: query.isLoading, missing: query.isError };
-}