test: add unit tests for pure logic modules

Add 22 test files covering imager, soundtracks, browser-headers, source-keys (figure/pet/effect), effect-source, plus catalog-translations, catalog-layouts, client-translation-files, translations-utils, and various admin/services/helpers modules. Total test count increases by 120+.

src/lib/bans.test.ts

@@ -1,24 +1,30 @@
 import { describe, expect, it } from "vitest";
-import { activeBanWhere, isBanActive } from "@/lib/bans";
+import { activeBanWhere, isBanActive, unixNow } from "./bans";
 
 describe("isBanActive", () => {
-	it("treats banExpire 0 as permanent", () => {
-		expect(isBanActive(0, 1_700_000_000)).toBe(true);
+	it("treats permanent bans (0) as active", () => {
+		expect(isBanActive(0, 12345)).toBe(true);
 	});
-
-	it("treats future expiry as active", () => {
-		expect(isBanActive(1_800_000_000, 1_700_000_000)).toBe(true);
+	it("treats future expiries as active", () => {
+		expect(isBanActive(200, 100)).toBe(true);
 	});
-
-	it("treats past expiry as inactive", () => {
-		expect(isBanActive(1_600_000_000, 1_700_000_000)).toBe(false);
+	it("treats past expiries as inactive", () => {
+		expect(isBanActive(100, 200)).toBe(false);
+		expect(isBanActive(100, 100)).toBe(false);
 	});
 });
 
 describe("activeBanWhere", () => {
-	it("includes permanent and future expires", () => {
+	it("matches permanent and unexpired bans", () => {
 		expect(activeBanWhere(100)).toEqual({
 			OR: [{ banExpire: 0 }, { banExpire: { gt: 100 } }],
 		});
 	});
 });
+
+describe("unixNow", () => {
+	it("returns seconds since epoch", () => {
+		const now = unixNow();
+		expect(now).toBeGreaterThan(1_700_000_000);
+	});
+});