Chore: Make Cfg field private in SQLStore (#85593)

* make cfg private in sqlstore

* fix db init in tests

* fix case

* fix folder test init

* fix imports

* make another Cfg private

* remove another Cfg

* remove unused variable

* use store cfg, it has side-effects

* fix mutated cfg in tests

pkg/services/sqlstore/user_test.go

@@ -14,13 +14,13 @@ func TestIntegrationGetOrCreateOrg(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping integration test in short mode")
 	}
-	ss := InitTestDB(t)
+	ss, _ := InitTestDB(t)
 
 	err := ss.WithNewDbSession(context.Background(), func(sess *DBSession) error {
 		// Create the org only:
-		ss.Cfg.AutoAssignOrg = true
-		ss.Cfg.DisableInitAdminCreation = true
-		ss.Cfg.AutoAssignOrgId = 1
+		ss.cfg.AutoAssignOrg = true
+		ss.cfg.DisableInitAdminCreation = true
+		ss.cfg.AutoAssignOrgId = 1
 		createdOrgID, err := ss.getOrCreateOrg(sess, mainOrgName)
 		require.NoError(t, err)
 		require.Equal(t, int64(1), createdOrgID)