refactor: centralize domain values and enforce numeric lint

src/modules/investments/investment-calendar.ts

@@ -1,3 +1,10 @@
+const MOSCOW_UTC_OFFSET_HOURS = 3;
+const MOSCOW_DAY_END_UTC = {
+  hours: 20,
+  minutes: 59,
+  seconds: 59,
+  milliseconds: 999,
+};
 export type DateOnlyRange = { from: string; to: string };
 const moscow = 'Europe/Moscow';
 export function moscowDate(value: Date): string {
@@ -14,9 +21,21 @@ export function moscowDate(value: Date): string {
 export function dateOnlyBounds(range: DateOnlyRange): { from: Date; to: Date } {
   const from = dateParts(range.from);
   const end = dateParts(range.to);
-  const to = new Date(Date.UTC(end[0], end[1] - 1, end[2], 20, 59, 59, 999));
+  const to = new Date(
+    Date.UTC(
+      end[0],
+      end[1] - 1,
+      end[2],
+      MOSCOW_DAY_END_UTC.hours,
+      MOSCOW_DAY_END_UTC.minutes,
+      MOSCOW_DAY_END_UTC.seconds,
+      MOSCOW_DAY_END_UTC.milliseconds,
+    ),
+  );
   return {
-    from: new Date(Date.UTC(from[0], from[1] - 1, from[2], -3)),
+    from: new Date(
+      Date.UTC(from[0], from[1] - 1, from[2], -MOSCOW_UTC_OFFSET_HOURS),
+    ),
     to: to > new Date() ? new Date() : to,
   };
 }