Hours by client: add search and CSV filtering; add alerts cron (BRT 08:00 guard) + alerts panel filters; admin companies shows last alert; PDF Inter font from public/fonts; fix Select empty value; type cleanups; tests for CSV/TZ; remove Knowledge Base nav

tests/time.test.ts

@@ -0,0 +1,17 @@
+import { describe, expect, it } from "vitest"
+import { dateKeyTZ, getTZParts, isAtHourTZ } from "@/lib/time"
+
+describe("time tz helpers", () => {
+  it("computes date key in timezone", () => {
+    const d = new Date("2025-10-07T10:30:00.000Z")
+    const key = dateKeyTZ(d, "America/Sao_Paulo")
+    // 2025-10-07 07:30 in Sao Paulo (UTC-3)
+    expect(key).toBe("2025-10-07")
+  })
+
+  it("matches hour in timezone", () => {
+    const d = new Date("2025-10-07T11:00:00.000Z") // 08:00 BRT (no DST)
+    expect(isAtHourTZ(d, "America/Sao_Paulo", 8)).toBe(true)
+  })
+})
+