chore: finish frontend ESLint migration #18

Enable every plugin recommended preset and replace Biome with ESLint formatting.

Preserve API contracts and JSX whitespace; verify source, tests, builds and tooling.

src/entities/bank-card/model/period.ts

@@ -1,20 +1,21 @@
 import { z } from "zod";
+
 import { bankMonth } from "./form-validation";
 
-const calendarDate = z.string().date();
+const calendarDate = z.iso.date();
 const ISO_DATE_LENGTH = 10;
-function bankPeriod(params: URLSearchParams) {
-	const month = bankMonth(params.get("month"));
+function bankPeriod(parameters: URLSearchParams) {
+	const month = bankMonth(parameters.get("month"));
 	const monthEnd = new Date(`${month}-01T00:00:00Z`);
 	monthEnd.setUTCMonth(monthEnd.getUTCMonth() + 1, 0);
-	const from = params.get("from");
-	const to = params.get("to");
-	return from &&
-		to &&
-		calendarDate.safeParse(from).success &&
-		calendarDate.safeParse(to).success &&
-		from >= "0001-01-01" &&
-		from <= to
+	const from = parameters.get("from");
+	const to = parameters.get("to");
+	return from
+		&& to
+		&& calendarDate.safeParse(from).success
+		&& calendarDate.safeParse(to).success
+		&& from >= "0001-01-01"
+		&& from <= to
 		? { from, to }
 		: {
 				from: `${month}-01`,