refactor: use Options struct in aibridgedserver.NewServer (#27200)

Refactor `aibridgedserver.NewServer` to take an `Options` struct instead
of a long list of positional arguments. Follow-up to review feedback in
https://github.com/coder/coder/pull/27117#discussion_r3571535760

enterprise/coderd/aibridgeserve.go

@@ -134,18 +134,17 @@ func (api *API) aiGatewayServe(rw http.ResponseWriter, r *http.Request) {
 	go aiGatewayCheckEntitlementAndTrackKeyUsage(connCtx, keyCtxCancel, api, gatewayKey.ID, logger)
 
 	mux := drpcmux.New()
-	srv, err := aibridgedserver.NewServer(
-		connCtx,
-		api.Database,
-		api.AGPL.Pubsub,
-		logger,
-		api.AccessURL.String(),
-		api.DeploymentValues.AI.BridgeConfig,
-		api.ExternalAuthConfigs,
-		api.AGPL.Experiments,
-		api.AGPL.AISeatTracker,
-		api.AGPL.Clock,
-	)
+	srv, err := aibridgedserver.NewServer(connCtx, aibridgedserver.Options{
+		Store:               api.Database,
+		Pubsub:              api.AGPL.Pubsub,
+		AISeatTracker:       api.AGPL.AISeatTracker,
+		AccessURL:           api.AccessURL.String(),
+		GatewayCfg:          api.DeploymentValues.AI.BridgeConfig,
+		ExternalAuthConfigs: api.ExternalAuthConfigs,
+		Experiments:         api.AGPL.Experiments,
+		Logger:              logger,
+		Clock:               api.AGPL.Clock,
+	})
 	if err != nil {
 		if !xerrors.Is(err, context.Canceled) {
 			logger.Error(connCtx, "server creation failed", slog.Error(err))