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.

5 files changed, 15 insertions, 13 deletions

diff --git a/src/lib/CommandPalette/CommandPalette.svelte b/src/lib/CommandPalette/CommandPalette.svelte
index bf568200..81ce112c 100644
--- a/src/lib/CommandPalette/CommandPalette.svelte
+++ b/src/lib/CommandPalette/CommandPalette.svelte
@@ -1,10 +1,10 @@
 <script lang="ts">
 import { onMount } from "svelte";
-import { fly, fade } from "svelte/transition";
 import { flip } from "svelte/animate";
-import type { CommandPaletteAction } from "./actions";
-import locale from "$stores/locale";
+import { fade, fly } from "svelte/transition";
 import { track } from "$lib/analytics";
+import locale from "$stores/locale";
+import type { CommandPaletteAction } from "./actions";
 
 export let items: CommandPaletteAction[] = [];
 export let open = false;
diff --git a/src/lib/CommandPalette/actions.ts b/src/lib/CommandPalette/actions.ts
index d2ed5a1d..19d7394e 100644
--- a/src/lib/CommandPalette/actions.ts
+++ b/src/lib/CommandPalette/actions.ts
@@ -1,6 +1,6 @@
+import { get } from "svelte/store";
 import { invalidateListCaches } from "$lib/Media/invalidate";
 import locale from "$stores/locale";
-import { get } from "svelte/store";
 
 export interface CommandPaletteAction {
 	name: string;
@@ -173,7 +173,8 @@ export const defaultActions = (): CommandPaletteAction[] => {
 			tags: ["user", "me", "settings"],
 		},
 		{
-			name: l.commandPalette?.refreshCaches ?? "Refresh Anime & Manga List Caches",
+			name:
+				l.commandPalette?.refreshCaches ?? "Refresh Anime & Manga List Caches",
 			url: "",
 			preventDefault: true,
 			tags: [
diff --git a/src/lib/CommandPalette/authActions.ts b/src/lib/CommandPalette/authActions.ts
index 3dd51bf7..7123db06 100644
--- a/src/lib/CommandPalette/authActions.ts
+++ b/src/lib/CommandPalette/authActions.ts
@@ -1,9 +1,9 @@
+import localforage from "localforage";
+import { get } from "svelte/store";
 import { env } from "$env/dynamic/public";
-import root from "$lib/Utility/root";
 import { track } from "$lib/analytics";
-import localforage from "localforage";
+import root from "$lib/Utility/root";
 import locale from "$stores/locale";
-import { get } from "svelte/store";
 import type { CommandPaletteAction } from "./actions";
 
 export const authActions = (
@@ -24,6 +24,7 @@ export const authActions = (
 					await localforage.removeItem("identity");
 					await localforage.removeItem("commit");
 
+					// biome-ignore lint/suspicious/noDocumentCookie: synchronous cookie clear on logout right before navigation; the Cookie Store API is async and not universally supported.
 					document.cookie =
 						"user=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;";
 
diff --git a/src/lib/CommandPalette/syncActions.ts b/src/lib/CommandPalette/syncActions.ts
index b3cf01c6..07b312d7 100644
--- a/src/lib/CommandPalette/syncActions.ts
+++ b/src/lib/CommandPalette/syncActions.ts
@@ -1,11 +1,11 @@
-import { addNotification } from "$lib/Notification/store";
+import { get } from "svelte/store";
 import { options } from "$lib/Notification/options";
+import { addNotification } from "$lib/Notification/store";
 import root from "$lib/Utility/root";
+import locale from "$stores/locale";
 import settings from "$stores/settings";
 import settingsSyncPulled from "$stores/settingsSyncPulled";
 import settingsSyncTimes from "$stores/settingsSyncTimes";
-import locale from "$stores/locale";
-import { get } from "svelte/store";
 import type { CommandPaletteAction } from "./actions";
 
 export const syncActions = (
diff --git a/src/lib/CommandPalette/toggleActions.ts b/src/lib/CommandPalette/toggleActions.ts
index 9ba1d121..f09a0358 100644
--- a/src/lib/CommandPalette/toggleActions.ts
+++ b/src/lib/CommandPalette/toggleActions.ts
@@ -1,6 +1,6 @@
-import settings, { type Settings } from "$stores/settings";
-import locale from "$stores/locale";
 import { get } from "svelte/store";
+import locale from "$stores/locale";
+import settings, { type Settings } from "$stores/settings";
 import type { CommandPaletteAction } from "./actions";
 
 const TITLE_FORMATS: Settings["displayTitleFormat"][] = [