feat(frontend): 画面に雪を降らせる機能を復活

packages/frontend/src/boot/main-boot.ts

@@ -20,6 +20,7 @@ import { mainRouter } from '@/router.js';
 import { initializeSw } from '@/scripts/initialize-sw.js';
 import { deckStore } from '@/ui/deck/deck-store.js';
 import { emojiPicker } from '@/scripts/emoji-picker.js';
+import { SnowfallEffect } from '@/scripts/snowfall-effect.js';
 
 export async function mainBoot() {
 	const { isClientUpdated } = await common(() => createApp(
@@ -75,6 +76,13 @@ export async function mainBoot() {
 		},
 	};
 
+	if (defaultStore.state.enableSeasonalScreenEffect) {
+		const month = new Date().getMonth() + 1;
+		if (month === 12 || month === 1) {
+			new SnowfallEffect().render();
+		}
+	}
+
 	if ($i) {
 		// only add post shortcuts if logged in
 		hotkeys['p|n'] = post;

packages/frontend/src/pages/settings/general.vue

@@ -122,6 +122,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<MkSwitch v-model="useSystemFont">{{ i18n.ts.useSystemFont }}</MkSwitch>
 				<MkSwitch v-model="disableDrawer">{{ i18n.ts.disableDrawer }}</MkSwitch>
 				<MkSwitch v-model="forceShowAds">{{ i18n.ts.forceShowAds }}</MkSwitch>
+				<MkSwitch v-model="enableSeasonalScreenEffect">{{ i18n.ts.seasonalScreenEffect }}</MkSwitch>
 			</div>
 			<div>
 				<MkRadios v-model="emojiStyle">
@@ -289,6 +290,7 @@ const notificationStackAxis = computed(defaultStore.makeGetterSetter('notificati
 const keepScreenOn = computed(defaultStore.makeGetterSetter('keepScreenOn'));
 const disableStreamingTimeline = computed(defaultStore.makeGetterSetter('disableStreamingTimeline'));
 const useGroupedNotifications = computed(defaultStore.makeGetterSetter('useGroupedNotifications'));
+const enableSeasonalScreenEffect = computed(defaultStore.makeGetterSetter('enableSeasonalScreenEffect'));
 
 watch(lang, () => {
 	miLocalStorage.setItem('lang', lang.value as string);
@@ -328,6 +330,7 @@ watch([
 	highlightSensitiveMedia,
 	keepScreenOn,
 	disableStreamingTimeline,
+	enableSeasonalScreenEffect,
 ], async () => {
 	await reloadAsk();
 });

packages/frontend/src/store.ts

@@ -412,6 +412,10 @@ export const defaultStore = markRaw(new Storage('base', {
 			code: false,
 		} as Record<string, boolean>,
 	},
+	enableSeasonalScreenEffect: {
+		where: 'device',
+		default: false,
+	},
 
 	sound_masterVolume: {
 		where: 'device',