Adds a single zap.Info line after the membership-insertion loop so
the boot log explicitly shows how many participants the sandbox
provisioned. The number is fixed by config (PlayerCount) but
surfacing it in the log makes troubleshooting "why is the lobby
empty" cases (typo in the email, partial failure) faster than
querying the DB.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Adds backend/internal/devsandbox: an idempotent boot-time hook that,
when BACKEND_DEV_SANDBOX_EMAIL is set, ensures (1) the configured
engine_version row, (2) the real dev user, (3) PlayerCount-1
deterministic dummy users, (4) a private "Dev Sandbox" game with a
year-out turn schedule, (5) memberships for every participant via
the new lobby.Service.InsertMembershipDirect helper, (6) a drive of
the lifecycle to running. Re-running on a populated DB is a no-op;
partial states from earlier crashes are recovered.
tools/local-dev gains the matching env vars in .env, surfaces them
in compose, and acquires a `make build-engine` target that builds
galaxy-engine:local-dev from game/Dockerfile (a prerequisite of
`up`/`rebuild`). The compose game-state mount is changed from a
named volume to a host bind on /tmp/galaxy-game-state so backend's
bind-mount source for spawned engine containers resolves on the
docker daemon.
After `make -C tools/local-dev up`, login as dev@local.test with
the dev code 123456 and the Dev Sandbox already shows up in My
Games. Per-user behaviour for the same email survives a backend
restart.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Ilia Denisov