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>

packages/db/prisma/migrations/20261021210000_products_broadcasts/migration.sql

@@ -0,0 +1,60 @@
+-- CreateEnum
+CREATE TYPE "BroadcastStatus" AS ENUM ('SENDING', 'DONE', 'CANCELLED');
+
+-- CreateEnum
+CREATE TYPE "BroadcastRecipientStatus" AS ENUM ('PENDING', 'SENT', 'BLOCKED', 'FAILED');
+
+-- AlterTable
+ALTER TABLE "PromoCode" ADD COLUMN     "categories" "CategoryCode"[] DEFAULT ARRAY[]::"CategoryCode"[],
+ADD COLUMN     "note" TEXT;
+
+-- CreateTable
+CREATE TABLE "TextOverride" (
+    "key" TEXT NOT NULL,
+    "locale" "Locale" NOT NULL,
+    "value" TEXT NOT NULL,
+    "updatedById" TEXT,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "TextOverride_pkey" PRIMARY KEY ("key","locale")
+);
+
+-- CreateTable
+CREATE TABLE "Broadcast" (
+    "id" TEXT NOT NULL,
+    "texts" JSONB NOT NULL,
+    "appButton" BOOLEAN NOT NULL DEFAULT true,
+    "filters" JSONB NOT NULL,
+    "status" "BroadcastStatus" NOT NULL DEFAULT 'SENDING',
+    "total" INTEGER NOT NULL DEFAULT 0,
+    "sent" INTEGER NOT NULL DEFAULT 0,
+    "blocked" INTEGER NOT NULL DEFAULT 0,
+    "failed" INTEGER NOT NULL DEFAULT 0,
+    "createdById" TEXT,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "finishedAt" TIMESTAMP(3),
+
+    CONSTRAINT "Broadcast_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "BroadcastRecipient" (
+    "id" TEXT NOT NULL,
+    "broadcastId" TEXT NOT NULL,
+    "clientId" TEXT NOT NULL,
+    "status" "BroadcastRecipientStatus" NOT NULL DEFAULT 'PENDING',
+    "error" TEXT,
+    "sentAt" TIMESTAMP(3),
+
+    CONSTRAINT "BroadcastRecipient_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "BroadcastRecipient_broadcastId_status_idx" ON "BroadcastRecipient"("broadcastId", "status");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "BroadcastRecipient_broadcastId_clientId_key" ON "BroadcastRecipient"("broadcastId", "clientId");
+
+-- AddForeignKey
+ALTER TABLE "BroadcastRecipient" ADD CONSTRAINT "BroadcastRecipient_broadcastId_fkey" FOREIGN KEY ("broadcastId") REFERENCES "Broadcast"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+