feat: Adding bare enabled to unit and stack blocks (#6714)

* feat: Adding bare `enabled` to unit and stack blocks

* chore: Fix-up

Author: yhakbar

internal/stacks/output/output.go

@@ -154,6 +154,10 @@ func StackOutput(
 		targetDir := filepath.Join(dir, config.StackDir)
 
 		for _, stack := range stackFile.Stacks {
+			if !stack.IsEnabled() {
+				continue
+			}
+
 			declaredStacks[filepath.Join(targetDir, stack.Path)] = stack.Name
 			l.Debugf(
 				"Registered stack %s at path %s",
@@ -163,6 +167,10 @@ func StackOutput(
 		}
 
 		for _, unit := range stackFile.Units {
+			if !unit.IsEnabled() {
+				continue
+			}
+
 			unitDir := unit.GeneratedPath(dir)
 
 			// Excluded units are fully omitted from the final output, matching stack run behavior.

pkg/config/config.go

@@ -1504,7 +1504,7 @@ func ParseConfig(
 		return nil, err
 	}
 
-	if err := ValidateExpansionExperiment(pctx.Experiments, file); err != nil {
+	if err := ValidateBlockIterationExperiment(pctx.Experiments, file); err != nil {
 		return nil, err
 	}
 

pkg/config/config_partial.go

@@ -618,7 +618,7 @@ func PartialParseConfig(
 		return nil, err
 	}
 
-	if err := ValidateExpansionExperiment(pctx.Experiments, file); err != nil {
+	if err := ValidateBlockIterationExperiment(pctx.Experiments, file); err != nil {
 		return nil, err
 	}
 

pkg/config/dependency.go

@@ -1002,6 +1002,10 @@ func collectStackUnitOutputs(
 	unitOutputs := make(map[string]cty.Value)
 
 	for _, unit := range units {
+		if !unit.IsEnabled() {
+			continue
+		}
+
 		unitDir := unit.GeneratedPath(stackDir)
 		unitConfigPath := filepath.Join(unitDir, DefaultTerragruntConfigPath)