chore: update golangci-lint config and fix lint issues (#542)

* chore: update golangci-lint config and fix lint issues

output/cookie_editor.go

@@ -7,17 +7,27 @@ import (
 	"github.com/moond4rk/hackbrowserdata/types"
 )
 
-type cookieEditorFormatter struct{}
+// cookieEditorFormatter outputs cookies in the CookieEditor browser extension
+// format. Non-cookie categories fall back to standard JSON output.
+type cookieEditorFormatter struct {
+	fallback *jsonFormatter
+}
 
 func (f *cookieEditorFormatter) ext() string { return "json" }
 
 func (f *cookieEditorFormatter) format(w io.Writer, rows []row) error {
+	if len(rows) == 0 {
+		return nil
+	}
+	// aggregate() guarantees all rows in a batch share the same type;
+	// check the first row to decide the format.
+	if _, ok := rows[0].entry.(types.CookieEntry); !ok {
+		return f.fallback.format(w, rows)
+	}
+
 	entries := make([]cookieEditorEntry, 0, len(rows))
 	for _, r := range rows {
-		c, ok := r.entry.(types.CookieEntry)
-		if !ok {
-			return nil // not cookies, skip
-		}
+		c, _ := r.entry.(types.CookieEntry)
 		var expDate float64
 		if !c.ExpireAt.IsZero() {
 			expDate = float64(c.ExpireAt.Unix())

output/formatter.go

@@ -18,7 +18,7 @@ func newFormatter(name string) (formatter, error) {
 	case "json":
 		return &jsonFormatter{}, nil
 	case "cookie-editor":
-		return &cookieEditorFormatter{}, nil
+		return &cookieEditorFormatter{fallback: &jsonFormatter{}}, nil
 	default:
 		return nil, fmt.Errorf("unsupported format: %s", name)
 	}

output/output_test.go

@@ -65,10 +65,10 @@ func TestNew(t *testing.T) {
 		t.Run(tt.format, func(t *testing.T) {
 			out, err := NewWriter(t.TempDir(), tt.format)
 			if tt.wantErr {
-				assert.Error(t, err)
+				require.Error(t, err)
 				assert.Nil(t, out)
 			} else {
-				assert.NoError(t, err)
+				require.NoError(t, err)
 				assert.NotNil(t, out)
 			}
 		})
@@ -142,7 +142,7 @@ func TestWrite_CSV_UTF8BOM(t *testing.T) {
 
 	raw, err := os.ReadFile(filepath.Join(dir, "password.csv"))
 	require.NoError(t, err)
-	require.True(t, len(raw) >= 3)
+	require.GreaterOrEqual(t, len(raw), 3)
 	assert.Equal(t, utf8BOM, raw[:3], "CSV should start with UTF-8 BOM")
 }
 
@@ -249,7 +249,7 @@ func TestWrite_CookieEditor(t *testing.T) {
 	}, entries[0])
 }
 
-func TestWrite_CookieEditor_SkipsNonCookie(t *testing.T) {
+func TestWrite_CookieEditor_FallbackJSON(t *testing.T) {
 	dir := t.TempDir()
 	out, err := NewWriter(dir, "cookie-editor")
 	require.NoError(t, err)
@@ -258,9 +258,9 @@ func TestWrite_CookieEditor_SkipsNonCookie(t *testing.T) {
 	})
 	require.NoError(t, out.Write())
 
-	// password file should not be created (cookie-editor only exports cookies)
+	// non-cookie categories fall back to standard JSON format
 	_, err = os.Stat(filepath.Join(dir, "password.json"))
-	assert.True(t, os.IsNotExist(err))
+	assert.False(t, os.IsNotExist(err), "password.json should be created via JSON fallback")
 }
 
 // --- File creation ---