fix production issues

packages/database/prisma/migrations/20260812180000_employee_company_email_unique/migration.sql

@@ -0,0 +1,5 @@
+-- Phase 0: unique employee email per company + normalize existing emails.
+UPDATE "employees" SET "email" = lower("email") WHERE "email" <> lower("email");
+
+-- If duplicate (companyId, email) rows exist, this statement fails intentionally so operators resolve data before enforcing uniqueness.
+CREATE UNIQUE INDEX IF NOT EXISTS "employees_companyId_email_key" ON "employees"("companyId", "email");

packages/database/prisma/migrations/20260812190000_notification_outbox_lease/migration.sql

@@ -0,0 +1,8 @@
+-- Phase 1: outbox leasing for multi-worker safe dispatch
+ALTER TABLE "notification_outbox" ADD COLUMN IF NOT EXISTS "locked_at" TIMESTAMP(3);
+ALTER TABLE "notification_outbox" ADD COLUMN IF NOT EXISTS "locked_by" TEXT;
+ALTER TABLE "notification_outbox" ADD COLUMN IF NOT EXISTS "attempts" INTEGER NOT NULL DEFAULT 0;
+ALTER TABLE "notification_outbox" ADD COLUMN IF NOT EXISTS "available_at" TIMESTAMP(3);
+
+CREATE INDEX IF NOT EXISTS "notification_outbox_status_available_at_idx"
+  ON "notification_outbox"("status", "available_at");