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.

8 files changed, 13 insertions, 14 deletions

diff --git a/src/stores/airingNow.ts b/src/stores/airingNow.ts
index b885b7a7..52b7bbb2 100644
--- a/src/stores/airingNow.ts
+++ b/src/stores/airingNow.ts
@@ -1,5 +1,5 @@
-import { browser } from "$app/environment";
 import { readable } from "svelte/store";
+import { browser } from "$app/environment";
 
 const TICK_INTERVAL_MS = 30 * 1000;
 
diff --git a/src/stores/announcementHash.ts b/src/stores/announcementHash.ts
index 0a41002f..4497036c 100644
--- a/src/stores/announcementHash.ts
+++ b/src/stores/announcementHash.ts
@@ -1,8 +1,8 @@
-import { browser } from "$app/environment";
 import { writable } from "svelte/store";
+import { browser } from "$app/environment";
 
 const announcementHash = writable<number>(
-	browser ? parseInt(localStorage.getItem("announcementHash") || "1") : 1,
+	browser ? parseInt(localStorage.getItem("announcementHash") || "1", 10) : 1,
 );
 
 announcementHash.subscribe((value) => {
diff --git a/src/stores/identity.ts b/src/stores/identity.ts
index abe0b40d..230da218 100644
--- a/src/stores/identity.ts
+++ b/src/stores/identity.ts
@@ -1,7 +1,7 @@
+import localforage from "localforage";
+import { writable } from "svelte/store";
 import { browser } from "$app/environment";
 import type { UserIdentity } from "$lib/Data/AniList/identity";
-import { writable } from "svelte/store";
-import localforage from "localforage";
 
 export const defaultIdentity: UserIdentity = {
 	name: "",
diff --git a/src/stores/lastPruneTimes.ts b/src/stores/lastPruneTimes.ts
index 2a770538..9935a2b7 100644
--- a/src/stores/lastPruneTimes.ts
+++ b/src/stores/lastPruneTimes.ts
@@ -1,6 +1,6 @@
-import { browser } from "$app/environment";
-import { writable } from "svelte/store";
 import localforage from "localforage";
+import { writable } from "svelte/store";
+import { browser } from "$app/environment";
 
 interface LastPruneTimes {
 	anime: number;
diff --git a/src/stores/locale.ts b/src/stores/locale.ts
index 1b94ea96..fc879b46 100644
--- a/src/stores/locale.ts
+++ b/src/stores/locale.ts
@@ -58,8 +58,7 @@ const createLocale = () => {
 							resolved = current;
 						} else {
 							const fallback = $json(keyStr, FALLBACK_LOCALE);
-							const fallbackMissing =
-								fallback === keyStr || fallback == null;
+							const fallbackMissing = fallback === keyStr || fallback == null;
 
 							if (currentMissing && fallbackMissing) return undefined;
 							if (currentMissing) resolved = fallback;
diff --git a/src/stores/settings.ts b/src/stores/settings.ts
index 50dd4013..1edab858 100644
--- a/src/stores/settings.ts
+++ b/src/stores/settings.ts
@@ -1,10 +1,10 @@
+import { get, writable } from "svelte/store";
 import { browser } from "$app/environment";
 import { parseJsonStringOrDefault } from "$lib/Effect/json";
 import root from "$lib/Utility/root";
-import { get, writable } from "svelte/store";
+import identity from "./identity";
 import settingsSyncPulled from "./settingsSyncPulled";
 import settingsSyncTimes from "./settingsSyncTimes";
-import identity from "./identity";
 
 const VERSION = "1.0.1";
 
diff --git a/src/stores/stateBin.ts b/src/stores/stateBin.ts
index 3fd38a99..9f5cf5fe 100644
--- a/src/stores/stateBin.ts
+++ b/src/stores/stateBin.ts
@@ -1,6 +1,6 @@
-import { browser } from "$app/environment";
-import { writable, get, type Writable } from "svelte/store";
 import localforage from "localforage";
+import { get, type Writable, writable } from "svelte/store";
+import { browser } from "$app/environment";
 
 interface StateBin {
 	dueAnimeListOpen?: boolean;
diff --git a/src/stores/subsPlease.ts b/src/stores/subsPlease.ts
index df36ff68..a1276a1c 100644
--- a/src/stores/subsPlease.ts
+++ b/src/stores/subsPlease.ts
@@ -1,5 +1,5 @@
-import type { SubsPlease } from "$lib/Media/Anime/Airing/Subtitled/subsPlease";
 import { writable } from "svelte/store";
+import type { SubsPlease } from "$lib/Media/Anime/Airing/Subtitled/subsPlease";
 
 const subsPlease = writable<SubsPlease>(undefined);