MM-62142: remove SELECT * from status store (round 2) (#30060)

* Revert "Revert "[MM-62142] Avoid SELECT * in status_store.go (#29610)" (#29985)"

This reverts commit d345e92136.

* add tests for StatusGet and StatusGetByIds

* handle NULL columns in the Status Store

* simplify status store

* more builder simplifications and tests

* expose GetQueryPlaceholder

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/store/sqlstore/sqlx_wrapper.go

@@ -20,6 +20,7 @@ import (
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/shared/mlog"
 	"github.com/mattermost/mattermost/server/v8/channels/store/storetest"
+	sq "github.com/mattermost/squirrel"
 )
 
 type StoreTestWrapper struct {
@@ -38,6 +39,10 @@ func (w *StoreTestWrapper) DriverName() string {
 	return w.orig.DriverName()
 }
 
+func (w *StoreTestWrapper) GetQueryPlaceholder() sq.PlaceholderFormat {
+	return w.orig.getQueryPlaceholder()
+}
+
 type Builder interface {
 	ToSql() (string, []any, error)
 }