feat: DaData ИНН lookup for clients and companies

- New API endpoint GET /api/lookup/party?inn=... — proxies to DaData API,
  returns parsed party (name, kpp, ogrn, address, signatory, status)
- Env DADATA_API_KEY (optional) — without it endpoint returns 503/no_dadata_key
- Web: InnLookupButton component shown next to ИНН field in Clients form
  and Company requisites; on click fetches DaData and fills all matching
  fields. Warns if status is not ACTIVE (liquidated, etc.)

Free DaData tier: 10000 requests/day. Get key at
https://dadata.ru/api/find-party/ — paste into DADATA_API_KEY in
docker/.env on queoserver.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docker/docker-compose.yml

@@ -41,6 +41,7 @@ services:
       CORS_ORIGINS: ${CORS_ORIGINS:-https://doc.queo.ru}
       TOCHKA_JWT_KEY: ${TOCHKA_JWT_KEY:-}
       TOCHKA_WEBHOOK_SECRET: ${TOCHKA_WEBHOOK_SECRET:-}
+      DADATA_API_KEY: ${DADATA_API_KEY:-}
       DEFAULT_ORGANIZATION_ID: ${DEFAULT_ORGANIZATION_ID:-00000000-0000-0000-0000-000000000001}
       DEV_BYPASS_AUTH: "0"
     expose: