feat(pricing): the server prices app orders with legacy's making-charge formula (MON-08)

Legacy: final % = variant % + customer % − the largest active promotion
on the product, its category or its brand; rial charge 0. The apps sent
the variant's own % only, so the new app undercharged by the customer's
percent (usually 3) and ignored promotions, and the server trusted
whatever the app sent.

- pricing/wage-formula.ts: one formula, legacy by default, with
  coefficients, promotion pick, constant, floor/cap and rounding so the
  admin screen can change it; validated
- an app order is priced by it; the app's wage, discount and rial charge
  are ignored; an operator's manual numbers are kept
- POST customer/me/wage-quote; both apps show that figure
- admin/pricing/wage-formula (config.wage): read, preview, approve with
  the sample it was checked on, last 20 versions kept; the setting is
  kept off the generic const routes

Owner approval: 2026-10-08.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/api/src/modules/admin-misc/admin-misc.service.ts

@@ -4,6 +4,7 @@ import { PrismaService } from '../../prisma/prisma.service';
 import { TableService } from '../admin-table/table.service';
 import type { TableQueryDto } from '../admin-table/table-query.dto';
 import { ACCOUNTING_SETTING_PREFIX } from '../accounting-sync/accounting-config';
+import { PRICING_SETTING_PREFIX } from '../pricing/wage.service';
 
 /**
  * The remaining admin screens — legacy views/city, views/sms, views/notify,
@@ -482,7 +483,7 @@ export class AdminMiscService {
     // lease) have their own `config.accounting` screen and never appear here
     // (D27); the single-key routes refuse them in the controller.
     const rows = await this.prisma.setting.findMany({
-      where: { NOT: { key: { startsWith: ACCOUNTING_SETTING_PREFIX } } },
+      where: { AND: [{ NOT: { key: { startsWith: ACCOUNTING_SETTING_PREFIX } } }, { NOT: { key: { startsWith: PRICING_SETTING_PREFIX } } }] },
       orderBy: { key: 'asc' },
     });
     return rows.map((r) => ({ key: r.key, value: r.value, updated_at: r.updatedAt }));