Backoffice stage 5: products, broadcasts, activity log, settings

- Products: services with full setup — content (name, description, extras names
  in 5 languages via text overrides), price tiers and extras, booking window,
  late-cancel fee, on/off, checklist; category discounts by membership level;
  membership plan prices; promo codes; relocation steps and documents.
- Text overrides: TextOverride table on top of the i18n files; API, bots and the
  worker reload them every minute, mini apps fetch public.texts at start.
- Promo codes applied to orders (admin new-order form and client API): not
  stacked with membership discount — the larger wins; once per client; validity,
  limit and categories.
- Broadcasts to the client bot by any client filter, per-language texts with
  Russian fallback, test to yourself, ~25 msg/s, per-recipient status, resume after
  worker restart, history with progress and stop.
- Activity log (who/when/what, filters, details) and Settings page with all
  owner settings grouped, plus payment methods.
- Tests for promo codes and text overrides.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

apps/api/src/server.ts

@@ -4,7 +4,7 @@ import multipart, { type MultipartFile } from '@fastify/multipart';
 import * as Sentry from '@sentry/node';
 import { fastifyTRPCPlugin, type FastifyTRPCPluginOptions } from '@trpc/server/adapters/fastify';
 import { getFlow } from '@barev/core';
-import { DomainError, getClientByTelegramId, proIdentity, receiveMessage, setChecklistItem, staffSend } from '@barev/services';
+import { DomainError, getClientByTelegramId, proIdentity, receiveMessage, setChecklistItem, staffSend, startTextOverrides } from '@barev/services';
 import { getFile, putFile } from '@barev/services/storage';
 import { TelegramSender } from '@barev/services/telegram';
 import Fastify, { type FastifyReply, type FastifyRequest } from 'fastify';
@@ -278,6 +278,9 @@ app.post('/client-log', { bodyLimit: 4096 }, async (req, reply) => {
 
 app.get('/health', async () => ({ ok: true }));
 
+// тексты из админки поверх переводов (обновляются раз в минуту)
+startTextOverrides(db);
+
 await ensureBucket().catch((e) => app.log.warn({ err: e }, 'S3 недоступно — загрузка фото работать не будет'));
 await app.listen({ port: env.API_PORT, host: '0.0.0.0' });
 console.log(`API: http://localhost:${env.API_PORT}`);