feat: 提交详情能看 diff，也能丢给 AI 审这一次改动。文件检查可单独排除路径，TODO 只认大写，避免把 todo 表和模块当成待办标记。

热力图按容器宽度铺满一年，不再横向滚动。托盘右键换成可换皮肤的弹层；更新下载显示进度，退出后再由脚本拉起安装器，避免还占着 exe。

database_test.go

@@ -255,6 +255,56 @@ func TestLoadingStylePersistsAndValidates(t *testing.T) {
 	}
 }
 
+func TestTrayMenuStylePersistsAndValidates(t *testing.T) {
+	s, e := OpenStore(filepath.Join(t.TempDir(), "settings.db"))
+	if e != nil {
+		t.Fatal(e)
+	}
+	defer s.db.Close()
+	if e = s.SaveSettings(AppSettings{Theme: "dark", Locale: "zh-CN", GitScope: "current", AutoRefresh: true, GlassOpacity: 55, TrayMenuStyle: "glass"}); e != nil {
+		t.Fatal(e)
+	}
+	got, e := s.Settings()
+	if e != nil {
+		t.Fatal(e)
+	}
+	if got.TrayMenuStyle != "glass" {
+		t.Fatalf("trayMenuStyle=%q", got.TrayMenuStyle)
+	}
+	if e = s.SaveSettings(AppSettings{GlassOpacity: 55, TrayMenuStyle: "fancy"}); e != nil {
+		t.Fatal(e)
+	}
+	got, e = s.Settings()
+	if e != nil {
+		t.Fatal(e)
+	}
+	if got.TrayMenuStyle != "native" {
+		t.Fatalf("invalid trayMenuStyle did not reset: %q", got.TrayMenuStyle)
+	}
+	if e = s.SaveSettings(AppSettings{GlassOpacity: 55, TrayMenuStyle: "minimal"}); e != nil {
+		t.Fatal(e)
+	}
+	got, e = s.Settings()
+	if e != nil {
+		t.Fatal(e)
+	}
+	if got.TrayMenuStyle != "compact" {
+		t.Fatalf("minimal alias=%q", got.TrayMenuStyle)
+	}
+	for _, style := range []string{"native", "liquid", "glass", "compact", "status", "neon"} {
+		if e = s.SaveSettings(AppSettings{GlassOpacity: 55, TrayMenuStyle: style}); e != nil {
+			t.Fatal(e)
+		}
+		got, e = s.Settings()
+		if e != nil {
+			t.Fatal(e)
+		}
+		if got.TrayMenuStyle != style {
+			t.Fatalf("trayMenuStyle=%q want %q", got.TrayMenuStyle, style)
+		}
+	}
+}
+
 func TestMigrateSkippedWhenVersionCurrent(t *testing.T) {
 	db := filepath.Join(t.TempDir(), "versioned.db")
 	s, e := OpenStore(db)