refactor: Rename project from dns-helper to ekdns across all files and documentation

hostfile/hostfile.go

@@ -9,8 +9,8 @@ import (
 )
 
 const (
-	StartMarker = "# DNSHelper <<-> START CONFIG"
-	EndMarker   = "# DNSHelper <->> END CONFIG"
+	StartMarker = "# ekDNSHelper <<-> START CONFIG"
+	EndMarker   = "# ekDNSHelper <->> END CONFIG"
 )
 
 // DNSEntry represents a single IP-to-hostname mapping.
@@ -116,7 +116,7 @@ func (m *Manager) Write(hf *HostsFile, backupDir string) error {
 	//    This is required so the subsequent rename stays on the same filesystem
 	//    partition (avoids EXDEV on Unix).
 	success := false
-	tempFile, err := m.fs.CreateTemp(filepath.Dir(hf.Path), ".dns-helper-tmp-*")
+	tempFile, err := m.fs.CreateTemp(filepath.Dir(hf.Path), ".ekdns-tmp-*")
 	if err != nil {
 		m.fs.Remove(backupPath) //nolint:errcheck
 		return fmt.Errorf("creating temp file: %w", err)

hostfile/hostfile_test.go

@@ -1,6 +1,7 @@
 package hostfile_test
 
 import (
+	"ekdns/hostfile"
 	"errors"
 	"fmt"
 	"os"
@@ -8,8 +9,6 @@ import (
 	"strings"
 	"testing"
 	"time"
-
-	"dns-helper/hostfile"
 )
 
 // ---------------------------------------------------------------------------

hostfile/managed.go

@@ -17,13 +17,13 @@ func ParseManagedBlock(lines []string) (prefix, managed, postfix []string, hasMa
 	endCount := 0
 
 	for i, line := range lines {
-		if strings.Contains(line, "DNSHelper <<-> START CONFIG") {
+		if strings.Contains(line, "ekDNSHelper <<-> START CONFIG") {
 			startCount++
 			if startIdx == -1 {
 				startIdx = i
 			}
 		}
-		if strings.Contains(line, "DNSHelper <->> END CONFIG") {
+		if strings.Contains(line, "ekDNSHelper <->> END CONFIG") {
 			endCount++
 			if endIdx == -1 {
 				endIdx = i

hostfile/managed_test.go

@@ -4,7 +4,7 @@ import (
 	"strings"
 	"testing"
 
-	"dns-helper/hostfile"
+	"ekdns/hostfile"
 )
 
 // ---------------------------------------------------------------------------
@@ -253,7 +253,7 @@ func TestAssembleContent_EmptyManagedOmitsBlock(t *testing.T) {
 		t.Fatalf("expected 2 lines (no managed block), got %d: %v", len(result), result)
 	}
 	for _, line := range result {
-		if strings.Contains(line, "DNSHelper") {
+		if strings.Contains(line, "ekDNSHelper") {
 			t.Errorf("managed block markers should be absent when managed is empty: %v", result)
 		}
 	}
@@ -353,7 +353,7 @@ func TestRemoveAll_AssembleContentOmitsBlock(t *testing.T) {
 		t.Fatalf("expected 2 lines with no managed block, got %d: %v", len(result), result)
 	}
 	for _, line := range result {
-		if strings.Contains(line, "DNSHelper") {
+		if strings.Contains(line, "ekDNSHelper") {
 			t.Errorf("managed block markers should be absent after RemoveAll: %v", result)
 		}
 	}