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/bot-pro/src/index.ts

@@ -5,6 +5,7 @@
 import { getDb } from '@barev/db';
 import { createT, formatDateTime, type Locale } from '@barev/i18n';
 import {
+  startTextOverrides,
   acceptPartnerInvite,
   addProviderMessage,
   checkCard,
@@ -32,6 +33,7 @@ if (!token) console.log('PRO_BOT_TOKEN не задан — бот исполни
 const db = getDb();
 const notifier = createQueueNotifier(process.env.REDIS_URL ?? 'redis://localhost:6379');
 const ctx: Ctx = { db, notify: notifier, now: () => new Date() };
+startTextOverrides(db);
 const APP_URL = process.env.PRO_MINIAPP_URL ?? '';
 const bot = new Bot(token || 'disabled:token');