feature: make dev — api и worker на хосте с видимым окном Chrome (#90)

- docker-compose.dev.yml: порты rabbitmq, redis, postgres на 127.0.0.1 (5673, 6380, 5433 —
  стандартные часто заняты другими проектами)
- make dev: останавливает контейнерные api и worker (иначе worker в Docker тоже берёт задачи
  из общей очереди и выполняет их невидимо), поднимает инфраструктуру, запускает uvicorn --reload
  на :8010 и воркер dramatiq; Ctrl+C останавливает оба
- make dev-key name=...: API-ключ без контейнера api
- README: раздел Local development

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -167,14 +167,17 @@ Not done yet:
 ## Local development
 
 ```bash
-make sync-offline        # venv in ~/.py_envs/robotex; another path: make VENV=... <target>
-docker compose up -d rabbitmq redis                       # queue and storage
-cd src && RABBITMQ_URL=... REDIS_URL=... uvicorn main:app --reload
-cd src && dramatiq worker.actors --processes 1 --threads 4
+make sync-offline              # venv in ~/.py_envs/robotex; another path: make VENV=... <target>
+make dev                       # api + worker on the host, Chrome windows visible on your desktop; API on :8010
+make dev-key name=local        # API key for it (stored in the same postgres volume as make up)
 ```
 
-The compose network is not published, so for running the services on the host publish `5672` and `6379` yourself,
-or just use `make up`. Chrome runs headful, so a display is required (locally — your desktop, in Docker — Xvfb).
+`make dev` stops the containerized api and worker (otherwise the Docker worker also takes tasks from the common
+queue and runs them invisibly), starts rabbitmq, redis and postgres with ports published on 127.0.0.1
+(`docker-compose.dev.yml`: 5673, 6380, 5433), then runs uvicorn with `--reload` and the dramatiq worker in the
+foreground. Ctrl+C stops both; `make down` stops the infrastructure. Ports, slots: `DEV_API_PORT`,
+`DEV_RABBITMQ_PORT`, `DEV_REDIS_PORT`, `DEV_POSTGRES_PORT`, `DEV_SLOTS` (default 2). Chrome runs headful, so a display
+is required (locally — your desktop, in Docker — Xvfb).
 
 Tests: