Adds infra/docker-compose.local.yml: the same full stack as the canonical
infra/docker-compose.yml, but the three config inputs (OpenZaak data.yaml,
Keycloak realms, Flowable BPMN) are bind-mounted from the repo instead of
streamed into external volumes by seed-config.sh.
Bind mounts are valid here because a local daemon (Docker Desktop on Windows/
macOS, or rootless Podman on Linux) can see the working directory — the seed
dance only exists for the containerized CI runner, where it can't. So this file
runs with a plain `docker compose up`: no make, no seed step, no bash.
docker compose -f infra/docker-compose.local.yml up -d --build
docker compose -f infra/docker-compose.local.yml up -d --build --wait # Docker Desktop
Linux/macOS convenience wrappers `make local` / `make local-down` added too.
Verified on podman: Keycloak boots from this file and imports the bind-mounted
realms (digid realm returns 200). docs/runbooks/ci.md documents the Windows path.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>