chore: import clean Agent Desk snapshot (6/7)

web/app/(dashboard)/dashboard/agent-team-schedules/_components/calendar-date-range.test.mjs

@@ -0,0 +1,19 @@
+import assert from "node:assert/strict"
+import test from "node:test"
+
+import { addDays, formatWeekTitle, isSameLocalDay, startOfWeek } from "./calendar-date-range.ts"
+
+test("builds Monday-based week range and title", () => {
+  const start = startOfWeek(new Date(2026, 3, 29, 14, 0, 0))
+
+  assert.equal(start.getFullYear(), 2026)
+  assert.equal(start.getMonth(), 3)
+  assert.equal(start.getDate(), 27)
+  assert.equal(formatWeekTitle(start), "2026-04-27 - 2026-05-03")
+  assert.equal(addDays(start, 7).getDate(), 4)
+})
+
+test("compares local calendar dates", () => {
+  assert.equal(isSameLocalDay(new Date(2026, 3, 29, 0, 0), new Date(2026, 3, 29, 23, 59)), true)
+  assert.equal(isSameLocalDay(new Date(2026, 3, 29, 23, 59), new Date(2026, 3, 30, 0, 0)), false)
+})