ADD - cover numeric database timestamps

frontend/src/utils/date.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from 'vitest'
+
+import { parseDatabaseDate } from './date'
+
+describe('database dates', () => {
+  it('parses SQL date strings', () => {
+    expect(parseDatabaseDate('2026-08-06 17:30:00').getTime()).toBe(
+      new Date('2026-08-06T17:30:00').getTime(),
+    )
+  })
+
+  it('parses Unix timestamps in seconds and milliseconds', () => {
+    expect(parseDatabaseDate(1_786_034_600).getTime()).toBe(1_786_034_600_000)
+    expect(parseDatabaseDate(1_786_034_600_000).getTime()).toBe(
+      1_786_034_600_000,
+    )
+  })
+})