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/version.go

@@ -23,8 +23,8 @@ type VersionMetadata struct {
 	NotAfter  *time.Time `json:"notAfter,omitempty"`  // When this version expires (nil = current)
 }
 
-// SecretVersion represents a version of a secret
-type SecretVersion struct {
+// Version represents a version of a secret
+type Version struct {
 	SecretName string
 	Version    string
 	Directory  string
@@ -32,8 +32,8 @@ type SecretVersion struct {
 	vault      VaultInterface
 }
 
-// NewSecretVersion creates a new SecretVersion instance
-func NewSecretVersion(vault VaultInterface, secretName string, version string) *SecretVersion {
+// NewVersion creates a new Version instance
+func NewVersion(vault VaultInterface, secretName string, version string) *Version {
 	DebugWith("Creating new secret version instance",
 		slog.String("secret_name", secretName),
 		slog.String("version", version),
@@ -51,7 +51,7 @@ func NewSecretVersion(vault VaultInterface, secretName string, version string) *
 	)
 
 	now := time.Now()
-	return &SecretVersion{
+	return &Version{
 		SecretName: secretName,
 		Version:    version,
 		Directory:  versionDir,
@@ -107,7 +107,7 @@ func GenerateVersionName(fs afero.Fs, secretDir string) (string, error) {
 }
 
 // Save saves the version metadata and value
-func (sv *SecretVersion) Save(value []byte) error {
+func (sv *Version) Save(value []byte) error {
 	DebugWith("Saving secret version",
 		slog.String("secret_name", sv.SecretName),
 		slog.String("version", sv.Version),
@@ -223,7 +223,7 @@ func (sv *SecretVersion) Save(value []byte) error {
 }
 
 // LoadMetadata loads and decrypts the version metadata
-func (sv *SecretVersion) LoadMetadata(ltIdentity *age.X25519Identity) error {
+func (sv *Version) LoadMetadata(ltIdentity *age.X25519Identity) error {
 	DebugWith("Loading version metadata",
 		slog.String("secret_name", sv.SecretName),
 		slog.String("version", sv.Version),
@@ -281,7 +281,7 @@ func (sv *SecretVersion) LoadMetadata(ltIdentity *age.X25519Identity) error {
 }
 
 // GetValue retrieves and decrypts the version value
-func (sv *SecretVersion) GetValue(ltIdentity *age.X25519Identity) ([]byte, error) {
+func (sv *Version) GetValue(ltIdentity *age.X25519Identity) ([]byte, error) {
 	DebugWith("Getting version value",
 		slog.String("secret_name", sv.SecretName),
 		slog.String("version", sv.Version),