fix(stf): fixes to make init genesis pass (#21088)

Co-authored-by: marbar3778 <marbar3778@yahoo.com>

runtime/v2/builder.go

@@ -128,8 +128,10 @@ func (a *AppBuilder[T]) Build(opts ...AppBuilderOption[T]) (*App[T], error) {
 	home := v.GetString(FlagHome)
 
 	storeOpts := rootstore.DefaultStoreOptions()
-	if err := v.Sub("store.options").Unmarshal(&storeOpts); err != nil {
-		return nil, fmt.Errorf("failed to store options: %w", err)
+	if s := v.Sub("store.options"); s != nil {
+		if err := s.Unmarshal(&storeOpts); err != nil {
+			return nil, fmt.Errorf("failed to store options: %w", err)
+		}
 	}
 
 	scRawDb, err := db.NewDB(db.DBType(v.GetString("store.app-db-backend")), "application", filepath.Join(home, "data"), nil)

runtime/v2/manager.go

@@ -166,7 +166,7 @@ func (m *MM[T]) InitGenesisJSON(
 		case appmodulev2.HasGenesis:
 			m.logger.Debug("running initialization for module", "module", moduleName)
 			if err := module.InitGenesis(ctx, genesisData[moduleName]); err != nil {
-				return err
+				return fmt.Errorf("init module %s: %w", moduleName, err)
 			}
 		case appmodulev2.HasABCIGenesis:
 			m.logger.Debug("running initialization for module", "module", moduleName)