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/app/api/leaderboard/route.ts

@@ -110,7 +110,7 @@ export async function GET(req: Request) {
 			async () =>
 				type === "credits"
 					? await loadCreditsRows()
-					: // eslint-disable-next-line security/detect-object-injection -- type validated to "diamonds"|"duckets"
+					: // type validated to "diamonds"|"duckets"
 						await loadCurrencyRows(CURRENCY_TYPE[type]),
 			// Rankings are re-sorted on every read; serving the previous order for a
 			// minute keeps a busy leaderboard off the database.