refactor(core): simplify Lnk creation with functional options pattern

internal/core/lnk.go

@@ -19,26 +19,30 @@ type Lnk struct {
 	fs       *fs.FileSystem
 }
 
-// NewLnk creates a new Lnk instance for common configuration
-func NewLnk() *Lnk {
-	repoPath := getRepoPath()
-	return &Lnk{
-		repoPath: repoPath,
-		host:     "", // Empty host means common configuration
-		git:      git.New(repoPath),
-		fs:       fs.New(),
+type Option func(*Lnk)
+
+// WithHost sets the host for host-specific configuration
+func WithHost(host string) Option {
+	return func(l *Lnk) {
+		l.host = host
 	}
 }
 
-// NewLnkWithHost creates a new Lnk instance for host-specific configuration
-func NewLnkWithHost(host string) *Lnk {
+// NewLnk creates a new Lnk instance with optional configuration
+func NewLnk(opts ...Option) *Lnk {
 	repoPath := getRepoPath()
-	return &Lnk{
+	lnk := &Lnk{
 		repoPath: repoPath,
-		host:     host,
+		host:     "",
 		git:      git.New(repoPath),
 		fs:       fs.New(),
 	}
+
+	for _, opt := range opts {
+		opt(lnk)
+	}
+
+	return lnk
 }
 
 // GetCurrentHostname returns the current system hostname

internal/core/lnk_test.go

@@ -592,7 +592,7 @@ func (suite *CoreTestSuite) TestMultihostFileOperations() {
 	suite.Require().NoError(err)
 
 	// Add file to host-specific configuration
-	hostLnk := NewLnkWithHost("workstation")
+	hostLnk := NewLnk(WithHost("workstation"))
 	err = hostLnk.Add(testFile2)
 	suite.Require().NoError(err)
 
@@ -661,7 +661,7 @@ func (suite *CoreTestSuite) TestMultihostSymlinkRestoration() {
 	suite.Require().NoError(err)
 
 	// Create files directly in host-specific storage (simulating a pull)
-	hostLnk := NewLnkWithHost("testhost")
+	hostLnk := NewLnk(WithHost("testhost"))
 
 	// Ensure host storage directory exists
 	hostStoragePath := hostLnk.getHostStoragePath()
@@ -729,7 +729,7 @@ func (suite *CoreTestSuite) TestMultihostIsolation() {
 	suite.Require().NoError(err)
 
 	// Add to host-specific
-	hostLnk := NewLnkWithHost("work")
+	hostLnk := NewLnk(WithHost("work"))
 	err = hostLnk.Add(testFile)
 	suite.Require().NoError(err)