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/(site)/room/[id]/page.tsx

@@ -16,7 +16,7 @@ const STATE_LABELS: Record<string, { label: string; icon: string }> = {
 };
 
 function describeState(state: string): { label: string; icon: string } {
-	// eslint-disable-next-line security/detect-object-injection -- STATE_LABELS has known keys, fallback provided
+	// STATE_LABELS has known keys, fallback provided
 	return STATE_LABELS[state] ?? { label: state || "Unknown", icon: "🚪" };
 }