internal/pkg: destroy unreachable status entries

These must be destroyed alongside their corresponding identifier or substitute entries to avoid inconsistent state.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/pkg/clean.go

@@ -80,6 +80,13 @@ func (c *Cache) Clean(dry, inputs bool, keep ...Artifact) (
 	destroyedIdents := make([]unique.Handle[ID], 0, len(idents))
 	for _, pair := range idents {
 		if !dry {
+			if err = os.Remove(c.base.Append(
+				dirStatus,
+				pair.name,
+			).String()); err != nil && !errors.Is(err, os.ErrNotExist) {
+				return destroyedIdents, nil, err
+			}
+
 			if err = os.Remove(c.base.Append(
 				dirIdentifier,
 				pair.name,
@@ -125,6 +132,13 @@ func (c *Cache) Clean(dry, inputs bool, keep ...Artifact) (
 
 		c.msg.Verbosef("destroying substitute %s...", name)
 		if !dry {
+			if err = os.Remove(c.base.Append(
+				dirStatus,
+				name,
+			).String()); err != nil && !errors.Is(err, os.ErrNotExist) {
+				return destroyedIdents, nil, err
+			}
+
 			if err = os.Remove(c.base.Append(
 				dirSubstitute,
 				name,