Fix revive package stuttering errors

- Rename SecretMetadata to Metadata in secret package
- Rename SecretVersion to Version in secret package
- Update NewSecretVersion to NewVersion function
- Update all references across the codebase including:
  - vault package aliases
  - CLI usage
  - test files
  - method receivers and signatures

internal/secret/secret.go

@@ -28,7 +28,7 @@ type VaultInterface interface {
 type Secret struct {
 	Name      string
 	Directory string
-	Metadata  SecretMetadata
+	Metadata  Metadata
 	vault     VaultInterface
 }
 
@@ -54,7 +54,7 @@ func NewSecret(vault VaultInterface, name string) *Secret {
 		Name:      name,
 		Directory: secretDir,
 		vault:     vault,
-		Metadata: SecretMetadata{
+		Metadata: Metadata{
 			CreatedAt: time.Now(),
 			UpdatedAt: time.Now(),
 		},
@@ -109,7 +109,7 @@ func (s *Secret) GetValue(unlocker Unlocker) ([]byte, error) {
 	}
 
 	// Create version object
-	version := NewSecretVersion(s.vault, s.Name, currentVersion)
+	version := NewVersion(s.vault, s.Name, currentVersion)
 
 	// Check if we have SB_SECRET_MNEMONIC environment variable for direct decryption
 	if envMnemonic := os.Getenv(EnvMnemonic); envMnemonic != "" {
@@ -216,7 +216,7 @@ func (s *Secret) LoadMetadata() error {
 	Debug("LoadMetadata called but is deprecated in versioned model", "secret_name", s.Name)
 	// For backward compatibility, we'll populate with basic info
 	now := time.Now()
-	s.Metadata = SecretMetadata{
+	s.Metadata = Metadata{
 		CreatedAt: now,
 		UpdatedAt: now,
 	}
@@ -224,7 +224,7 @@ func (s *Secret) LoadMetadata() error {
 }
 
 // GetMetadata returns the secret metadata (deprecated)
-func (s *Secret) GetMetadata() SecretMetadata {
+func (s *Secret) GetMetadata() Metadata {
 	Debug("GetMetadata called but is deprecated in versioned model", "secret_name", s.Name)
 	return s.Metadata
 }