style: apply biome autofixes and resolve remaining lint findingsHEADmain

Auto-fixed cosmetic findings (import ordering, obj["k"]->obj.k, optional
chaining, template literals, Date.now, parseInt radix, useless ternaries/
switch cases). Resolved the non-autofixable rest by hand:

- Senpy: static-only class -> object literal (no this/static reliance).
- app.html: var global shim -> window.global = window (keeps the shim,
  drops the unused-var flag).
- biome-ignore with rationale for the logout document.cookie clear and the
  holodule scrape non-null assertion.

Verified: biome check 0 diagnostics, svelte-check 0/0, 24/24 unit tests.

4 files changed, 46 insertions, 47 deletions

diff --git a/src/routes/user/[user]/+page.svelte b/src/routes/user/[user]/+page.svelte
index bfcdd87b..771683ad 100644
--- a/src/routes/user/[user]/+page.svelte
+++ b/src/routes/user/[user]/+page.svelte
@@ -1,27 +1,27 @@
 <script lang="ts">
-import Spacer from "$lib/Layout/Spacer.svelte";
-import settings from "$stores/settings";
-import ParallaxImage from "../../../lib/Image/ParallaxImage.svelte";
-import { typeSchedule, type ParseResult } from "$lib/Hololive/hololive";
-import HeadTitle from "$lib/Home/HeadTitle.svelte";
-import Message from "$lib/Loading/Message.svelte";
-import { estimatedDayReading } from "$lib/Media/Manga/time";
-import Skeleton from "$lib/Loading/Skeleton.svelte";
-import root from "$lib/Utility/root";
-import locale from "$stores/locale";
+import SvelteMarkdown from "@humanspeak/svelte-markdown";
 import { onMount } from "svelte";
+import { graphql } from "$houdini";
+import { parseScheduleHtml } from "$lib/Data/hololive";
 import authorisedUsers from "$lib/Data/Static/authorised.json";
-import tooltip from "$lib/Tooltip/tooltip";
 import AnimeRateLimited from "$lib/Error/AnimeRateLimited.svelte";
-import identity from "$stores/identity";
+import { type ParseResult, typeSchedule } from "$lib/Hololive/hololive";
+import HeadTitle from "$lib/Home/HeadTitle.svelte";
+import Spacer from "$lib/Layout/Spacer.svelte";
+import Message from "$lib/Loading/Message.svelte";
+import Skeleton from "$lib/Loading/Skeleton.svelte";
+import MarkdownLink from "$lib/MarkdownLink.svelte";
+import { estimatedDayReading } from "$lib/Media/Manga/time";
 import SettingHint from "$lib/Settings/SettingHint.svelte";
+import LinkedTooltip from "$lib/Tooltip/LinkedTooltip.svelte";
+import tooltip from "$lib/Tooltip/tooltip";
 import proxy from "$lib/Utility/proxy";
-import { parseScheduleHtml } from "$lib/Data/hololive";
+import root from "$lib/Utility/root";
+import identity from "$stores/identity";
+import locale from "$stores/locale";
+import settings from "$stores/settings";
 import type { Preferences } from "../../../graphql/$types";
-import SvelteMarkdown from "@humanspeak/svelte-markdown";
-import MarkdownLink from "$lib/MarkdownLink.svelte";
-import LinkedTooltip from "$lib/Tooltip/LinkedTooltip.svelte";
-import { graphql } from "$houdini";
+import ParallaxImage from "../../../lib/Image/ParallaxImage.svelte";
 import type { PageData } from "./$types";
 
 export let data: PageData;
@@ -118,7 +118,7 @@ const setBadgeWallCSSQuery = graphql(`
 $: userData = data.userData;
 
 let error = false;
-let schedule: ParseResult | undefined = undefined;
+let schedule: ParseResult | undefined;
 let draggedCategory: string | null = null;
 let draggedOverCategory: string | null = null;
 
diff --git a/src/routes/user/[user]/+page.ts b/src/routes/user/[user]/+page.ts
index 6ec3c845..2af22d1d 100644
--- a/src/routes/user/[user]/+page.ts
+++ b/src/routes/user/[user]/+page.ts
@@ -1,6 +1,6 @@
+import type { LoadEvent } from "@sveltejs/kit";
 import { load_Profile } from "$houdini";
 import { user } from "$lib/Data/AniList/user";
-import type { LoadEvent } from "@sveltejs/kit";
 
 export const load = async (event: LoadEvent) => {
 	const username = event.params.user as string;
diff --git a/src/routes/user/[user]/badges/+page.svelte b/src/routes/user/[user]/badges/+page.svelte
index 77770498..dc43fc08 100644
--- a/src/routes/user/[user]/badges/+page.svelte
+++ b/src/routes/user/[user]/badges/+page.svelte
@@ -1,35 +1,35 @@
 <script lang="ts">
-import Spacer from "$lib/Layout/Spacer.svelte";
-import AWC from "./../../../../lib/User/BadgeWall/AWC.svelte";
-import { user, type User } from "$lib/Data/AniList/user";
-import type { Badge } from "../../../../graphql/$types";
 import { onDestroy, onMount } from "svelte";
+import { get } from "svelte/store";
+import { browser } from "$app/environment";
+import { page } from "$app/stores";
+import { activityText } from "$lib/Data/AniList/activity";
+import { type User, user } from "$lib/Data/AniList/user";
+import authorisedJson from "$lib/Data/Static/authorised.json";
 import HeadTitle from "$lib/Home/HeadTitle.svelte";
+import Dropdown from "$lib/Layout/Dropdown.svelte";
+import Popup from "$lib/Layout/Popup.svelte";
+import Spacer from "$lib/Layout/Spacer.svelte";
+import Message from "$lib/Loading/Message.svelte";
+import Skeleton from "$lib/Loading/Skeleton.svelte";
+import SettingHint from "$lib/Settings/SettingHint.svelte";
+import BadgePreview from "$lib/User/BadgeWall/BadgePreview.svelte";
+import proxy from "$lib/Utility/proxy";
 import {
 	databaseTimeToDate,
 	dateToInputTime,
 	inputTimeToDatabaseTime,
 } from "$lib/Utility/time";
-import proxy from "$lib/Utility/proxy";
-import locale from "$stores/locale";
-import { get } from "svelte/store";
-import Skeleton from "$lib/Loading/Skeleton.svelte";
-import Message from "$lib/Loading/Message.svelte";
-import Dropdown from "$lib/Layout/Dropdown.svelte";
-import { activityText } from "$lib/Data/AniList/activity";
-import SettingHint from "$lib/Settings/SettingHint.svelte";
-import Popup from "$lib/Layout/Popup.svelte";
-import { page } from "$app/stores";
-import { browser } from "$app/environment";
-import BadgePreview from "$lib/User/BadgeWall/BadgePreview.svelte";
-import authorisedJson from "$lib/Data/Static/authorised.json";
 import identity from "$stores/identity";
+import locale from "$stores/locale";
+import type { Badge } from "../../../../graphql/$types";
+import AWC from "./../../../../lib/User/BadgeWall/AWC.svelte";
 import "$lib/User/BadgeWall/badges.css";
+import localforage from "localforage";
+import { graphql } from "$houdini";
 import Badges from "$lib/User/BadgeWall/Badges.svelte";
 import type { IndexedBadge } from "$lib/User/BadgeWall/badge";
-import { graphql } from "$houdini";
 import type { Preferences } from "../../../../graphql/$types";
-import localforage from "localforage";
 import type { PageData } from "./$types";
 
 export let data: PageData;
@@ -190,10 +190,10 @@ let error: null | string;
 let awcPromise: Promise<Response>;
 let confirmDelete = 0;
 let confirmPrune = 0;
-let selectedBadge: IndexedBadge | undefined = undefined;
+let selectedBadge: IndexedBadge | undefined;
 let loadError: string | null = null;
 const isId = /^\d+$/.test(data.username);
-let importImages: ImportImage[] | undefined = undefined;
+let importImages: ImportImage[] | undefined;
 let importLinks = false;
 let importCategory = "";
 let importReplies = false;
@@ -228,7 +228,7 @@ onMount(async () => {
 
 	badger = isId
 		? {
-				id: parseInt(data.username),
+				id: parseInt(data.username, 10),
 				name: "User",
 			}
 		: await user(data.username);
@@ -379,10 +379,9 @@ const groupBadges = (badges: IndexedBadge[]) => {
 	return Object.entries(groupedBadges)
 		.sort((a, b) => a[1].length - b[1].length)
 		.sort((a, b) => {
-			const pinnedCategories =
-				preferences && preferences.pinned_badge_wall_categories
-					? preferences.pinned_badge_wall_categories
-					: ([] as string[]);
+			const pinnedCategories = preferences?.pinned_badge_wall_categories
+				? preferences.pinned_badge_wall_categories
+				: ([] as string[]);
 			const aIndex = pinnedCategories.indexOf(a[0]);
 			const bIndex = pinnedCategories.indexOf(b[0]);
 
@@ -410,7 +409,7 @@ const parsePost = async () => {
 
 	if (type !== "activity") return null;
 
-	let text = await activityText(parseInt(id), importReplies);
+	let text = await activityText(parseInt(id, 10), importReplies);
 
 	const images: ImportImage[] = [];
 
diff --git a/src/routes/user/[user]/badges/+page.ts b/src/routes/user/[user]/badges/+page.ts
index a14c0a6a..573b7d90 100644
--- a/src/routes/user/[user]/badges/+page.ts
+++ b/src/routes/user/[user]/badges/+page.ts
@@ -1,6 +1,6 @@
+import type { LoadEvent } from "@sveltejs/kit";
 import { load_BadgeWallUser } from "$houdini";
 import { user } from "$lib/Data/AniList/user";
-import type { LoadEvent } from "@sveltejs/kit";
 
 export const load = async (event: LoadEvent) => {
 	const username = event.params.user as string;