chore(lint): remove dead eslint-disable directives

The project lints with Biome only, so none of these 78 directives across 57
files ever suppressed anything. Directives that carried the rationale for a
flagged dynamic index access keep that rationale as a plain comment.

src/lib/theme-custom-store.ts

@@ -42,7 +42,7 @@ function fallbackFor(key: string): string {
 	const preset = PRESETS["Atom (golden)"];
 	if (key.endsWith("_dark")) {
 		const base = key.slice(0, -"_dark".length) as ThemeColorKey;
-		return preset.dark[base] ?? ""; // eslint-disable-line security/detect-object-injection -- key derived from internal THEME_COLOR_KEYS
+		return preset.dark[base] ?? ""; // key derived from internal THEME_COLOR_KEYS
 	}
 	if (key in preset.light) {
 		return preset.light[key as ThemeColorKey] ?? "";
@@ -63,7 +63,7 @@ function fallbackFor(key: string): string {
 		theme_preset: "Atom (golden)",
 		...BACKGROUND_DEFAULTS,
 	};
-	return extras[key] ?? ""; // eslint-disable-line security/detect-object-injection -- key derived from internal EXTRA_KEYS
+	return extras[key] ?? ""; // key derived from internal EXTRA_KEYS
 }
 
 export async function listCustomThemes(): Promise<CustomTheme[]> {
@@ -106,9 +106,9 @@ export async function upsertCustomTheme(
 	if (id) {
 		const idx = themes.findIndex((t) => t.id === id);
 		if (idx >= 0) {
-			themes[idx] = { ...themes[idx], name: trimmed, settings }; // eslint-disable-line security/detect-object-injection -- idx from findIndex over internal array
+			themes[idx] = { ...themes[idx], name: trimmed, settings }; // idx from findIndex over internal array
 			await persist(themes);
-			return themes[idx]; // eslint-disable-line security/detect-object-injection -- idx from findIndex over internal array
+			return themes[idx]; // idx from findIndex over internal array
 		}
 	}
 	const theme: CustomTheme = {