Board components size themselves from a --board-unit CSS variable instead
of vw. By default it is 1vw, so the game page looks the same; with the new
width prop the same board renders small, e.g. in previews.
- Games record start and move times, spectator peak and distinct count
- Games end as completed, left (the leaver loses), timeout (5 minutes
offline on your turn while the opponent is online) or inactive (both
offline for 30 minutes); everyone gets on_game_end
- Connection info carries offlineSince for the countdown
- A new game is rejected while the user has one in progress
- Live games are written to Valkey after every change and restored on
startup; finished games are saved to Postgres with public ids, and
saves that fail are kept and retried every 30 seconds
- Clients get a trimmed game without spectator ids
- Startup waits for Valkey, restores games, then accepts connections;
migrations are retried while Postgres is unreachable
- Connection pool and a small migration runner (schema_migrations, one
transaction per migration, advisory lock)
- games and game_players tables with indexes for a user's games and for
popular games
- PostgresGameHistoryRepository: idempotent save, get, recent games of a
user, popular games
- Integration tests against a real Postgres via testcontainers; a custom
Jest environment gives tests Node's web globals, which Jest 27 leaves out
- GameRecord carries the number of distinct spectators
