feat(hooks): add hk to detected hook managers

cmd/entire/cli/strategy/hook_managers.go

@@ -39,6 +39,14 @@ func detectHookManagers(repoRoot string) []hookManager {
 		}
 	}
 
+	// hk supports {.config/,}hk{,.local}.pkl
+	for _, dir := range []string{"", ".config/"} {
+		for _, variant := range []string{"", ".local"} {
+			name := dir + "hk" + variant + ".pkl"
+			checks = append(checks, hookManager{"hk", name, false})
+		}
+	}
+
 	seen := make(map[string]bool)
 	for _, c := range checks {
 		path := filepath.Join(repoRoot, c.ConfigPath)

cmd/entire/cli/strategy/hook_managers_test.go

@@ -193,6 +193,94 @@ func TestDetectHookManagers_Overcommit(t *testing.T) {
 	}
 }
 
+func TestDetectHookManagers_Hk(t *testing.T) {
+	t.Parallel()
+
+	tmpDir := t.TempDir()
+	if err := os.WriteFile(filepath.Join(tmpDir, "hk.pkl"), []byte(""), 0o644); err != nil {
+		t.Fatalf("failed to create hk.pkl: %v", err)
+	}
+
+	managers := detectHookManagers(tmpDir)
+	if len(managers) != 1 {
+		t.Fatalf("expected 1 manager, got %d", len(managers))
+	}
+	if managers[0].Name != "hk" {
+		t.Errorf("expected hk, got %s", managers[0].Name)
+	}
+	if managers[0].ConfigPath != "hk.pkl" {
+		t.Errorf("expected hk.pkl, got %s", managers[0].ConfigPath)
+	}
+	if managers[0].OverwritesHooks {
+		t.Error("hk should have OverwritesHooks=false")
+	}
+}
+
+func TestDetectHookManagers_HkConfigDir(t *testing.T) {
+	t.Parallel()
+
+	tmpDir := t.TempDir()
+	configDir := filepath.Join(tmpDir, ".config")
+	if err := os.MkdirAll(configDir, 0o755); err != nil {
+		t.Fatalf("failed to create .config/: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(configDir, "hk.pkl"), []byte(""), 0o644); err != nil {
+		t.Fatalf("failed to create .config/hk.pkl: %v", err)
+	}
+
+	managers := detectHookManagers(tmpDir)
+	if len(managers) != 1 {
+		t.Fatalf("expected 1 manager, got %d", len(managers))
+	}
+	if managers[0].Name != "hk" {
+		t.Errorf("expected hk, got %s", managers[0].Name)
+	}
+	if managers[0].ConfigPath != ".config/hk.pkl" {
+		t.Errorf("expected .config/hk.pkl, got %s", managers[0].ConfigPath)
+	}
+}
+
+func TestDetectHookManagers_HkLocal(t *testing.T) {
+	t.Parallel()
+
+	tmpDir := t.TempDir()
+	if err := os.WriteFile(filepath.Join(tmpDir, "hk.local.pkl"), []byte(""), 0o644); err != nil {
+		t.Fatalf("failed to create hk.local.pkl: %v", err)
+	}
+
+	managers := detectHookManagers(tmpDir)
+	if len(managers) != 1 {
+		t.Fatalf("expected 1 manager, got %d", len(managers))
+	}
+	if managers[0].Name != "hk" {
+		t.Errorf("expected hk, got %s", managers[0].Name)
+	}
+	if managers[0].ConfigPath != "hk.local.pkl" {
+		t.Errorf("expected hk.local.pkl, got %s", managers[0].ConfigPath)
+	}
+}
+
+func TestDetectHookManagers_HkDedup(t *testing.T) {
+	t.Parallel()
+
+	tmpDir := t.TempDir()
+	// Both hk.pkl and hk.local.pkl present — should only report once
+	if err := os.WriteFile(filepath.Join(tmpDir, "hk.pkl"), []byte(""), 0o644); err != nil {
+		t.Fatalf("failed to create hk.pkl: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(tmpDir, "hk.local.pkl"), []byte(""), 0o644); err != nil {
+		t.Fatalf("failed to create hk.local.pkl: %v", err)
+	}
+
+	managers := detectHookManagers(tmpDir)
+	if len(managers) != 1 {
+		t.Fatalf("expected 1 manager (dedup), got %d", len(managers))
+	}
+	if managers[0].Name != "hk" {
+		t.Errorf("expected hk, got %s", managers[0].Name)
+	}
+}
+
 func TestDetectHookManagers_Multiple(t *testing.T) {
 	t.Parallel()