Public rank change log: sa_rank_log, written on rank changes, listed on the Staff page

main.go

@@ -5,6 +5,7 @@ package main
 import (
 	"context"
 	"database/sql"
+	_ "embed"
 	"errors"
 	"fmt"
 	"log/slog"
@@ -27,6 +28,11 @@ import (
 	"git.zio.sh/cs2/simpleadmin-web/internal/web"
 )
 
+// rankLogSQL creates sa_rank_log, the rank history (see the file).
+//
+//go:embed sql/rank-log.sql
+var rankLogSQL string
+
 func env(key, def string) string {
 	if v := strings.TrimSpace(os.Getenv(key)); v != "" {
 		return v
@@ -127,6 +133,9 @@ func run() error {
 		return errors.New("sa_servers lists several servers; set SAW_SERVER_ID to this server's id")
 	}
 	st = store.New(db, loc, srv.ID, timeMode)
+	if err := st.EnsureRankLog(ctx, rankLogSQL); err != nil {
+		slog.Warn("couldn't create sa_rank_log; rank changes won't be logged until sql/rank-log.sql is run", "err", err)
+	}
 
 	rconAddr := env("SAW_RCON_ADDR", srv.Address)
 	rconPass := env("SAW_RCON_PASSWORD", srv.RconPassword)