fix(HH-590): define realtime timestamp range (#151)

Co-authored-by: Rogee <rogee@ipao.vip>

frontend/app/javascript/shared/helpers/timeHelper.js

@@ -6,11 +6,20 @@ import {
   differenceInDays,
 } from 'date-fns';
 
+// Numeric realtime timestamps below 1e10 are Unix seconds (through 2286-11-20);
+// larger values are milliseconds, bounded by the ECMAScript Date range.
+const UNIX_SECONDS_LIMIT = 1e10;
+const DATE_MILLISECONDS_LIMIT = 8.64e15;
+
 const normalizeTimestamp = value => {
   const numericValue =
     typeof value === 'string' && value.trim() ? Number(value) : value;
   if (typeof numericValue === 'number' && Number.isFinite(numericValue)) {
-    return Math.abs(numericValue) < 1e12 ? numericValue * 1000 : numericValue;
+    const timestamp =
+      Math.abs(numericValue) < UNIX_SECONDS_LIMIT
+        ? numericValue * 1000
+        : numericValue;
+    return Math.abs(timestamp) <= DATE_MILLISECONDS_LIMIT ? timestamp : null;
   }
   if (typeof value !== 'string') return null;