fix(test): isolate .git/config updates

fix(test): isolate .git/config updates

Author: sgaunet

tests/integration/empty_repo_test.go

@@ -21,13 +21,13 @@ func TestEmptyRepository(t *testing.T) {
 	}
 
 	// Configure git user
-	configEmailCmd := exec.Command("git", "config", "user.email", "[email protected]")
+	configEmailCmd := exec.Command("git", "config", "--local", "user.email", "[email protected]")
 	configEmailCmd.Dir = tmpDir
 	if err := configEmailCmd.Run(); err != nil {
 		t.Fatalf("Failed to configure git user.email: %v", err)
 	}
 
-	configNameCmd := exec.Command("git", "config", "user.name", "Test User")
+	configNameCmd := exec.Command("git", "config", "--local", "user.name", "Test User")
 	configNameCmd.Dir = tmpDir
 	if err := configNameCmd.Run(); err != nil {
 		t.Fatalf("Failed to configure git user.name: %v", err)

tests/integration/git_commit_test.go

@@ -28,8 +28,8 @@ func setupTestRepo(t *testing.T) string {
 
 	// Configure Git user (required for commits)
 	configCmds := [][]string{
-		{"config", "user.name", "Test User"},
-		{"config", "user.email", "[email protected]"},
+		{"config", "--local", "user.name", "Test User"},
+		{"config", "--local", "user.email", "[email protected]"},
 	}
 	for _, args := range configCmds {
 		cmd := exec.Command("git", args...)