fix(augment): make hook installation transactional

cmd/elydora/plugins/augment_official_test.go

@@ -0,0 +1,53 @@
+package plugins
+
+import (
+	"os"
+	"os/exec"
+	"strings"
+	"testing"
+)
+
+func TestAugmentOfficialBinaryAcceptsInstalledUserHooks(t *testing.T) {
+	entry := os.Getenv("ELYDORA_AUGGIE_ENTRY")
+	if entry == "" {
+		t.Skip("ELYDORA_AUGGIE_ENTRY is unset")
+	}
+	nodePath, err := resolveNodeRuntime()
+	if err != nil {
+		t.Fatalf("resolve Node.js runtime: %v", err)
+	}
+	fixture := prepareAugmentFixture(t, augmentFixtureOptions{})
+	if err := fixture.plugin.Install(fixture.config); err != nil {
+		t.Fatalf("install Auggie hooks: %v", err)
+	}
+	environment := append(
+		os.Environ(),
+		"HOME="+fixture.homeDir,
+		"USERPROFILE="+fixture.homeDir,
+	)
+	version := exec.Command(nodePath, entry, "--version")
+	version.Dir = fixture.projectDir
+	version.Env = environment
+	versionOutput, err := version.CombinedOutput()
+	if err != nil || !strings.Contains(string(versionOutput), "0.33.0") {
+		t.Fatalf("official Auggie version: %v\n%s", err, versionOutput)
+	}
+	load := exec.Command(nodePath, entry, "tools", "list")
+	load.Dir = fixture.projectDir
+	load.Env = environment
+	loadOutput, err := load.CombinedOutput()
+	if err != nil {
+		t.Fatalf("official Auggie settings load: %v\n%s", err, loadOutput)
+	}
+	output := strings.ToLower(string(loadOutput))
+	for _, problem := range []string{
+		"invalid settings",
+		"settings validation",
+		"failed to parse",
+		"hook configuration error",
+	} {
+		if strings.Contains(output, problem) {
+			t.Fatalf("official Auggie loader reported %q:\n%s", problem, loadOutput)
+		}
+	}
+}