Merge remote-tracking branch 'guunergooner/fix/openai-stop-reason-usage'

src/utils/__tests__/formatBriefTimestamp.test.ts

@@ -1,6 +1,16 @@
-import { describe, expect, test } from "bun:test";
+import { describe, expect, test, beforeAll, afterAll } from "bun:test";
 import { formatBriefTimestamp } from "../formatBriefTimestamp";
 
+let savedLcAll: string | undefined;
+beforeAll(() => {
+  savedLcAll = process.env.LC_ALL;
+  process.env.LC_ALL = "en_US.UTF-8";
+});
+afterAll(() => {
+  if (savedLcAll === undefined) delete process.env.LC_ALL;
+  else process.env.LC_ALL = savedLcAll;
+});
+
 describe("formatBriefTimestamp", () => {
   // Fixed "now" for deterministic tests: 2026-04-02T14:00:00Z (Thursday)
   const now = new Date("2026-04-02T14:00:00Z");

src/utils/formatBriefTimestamp.ts

@@ -76,6 +76,7 @@ function getLocale(): string | undefined {
   }
 }
 
+/** Return the epoch-ms of the start of the local calendar day for `d`. */
 function startOfDay(d: Date): number {
   return new Date(d.getFullYear(), d.getMonth(), d.getDate()).getTime()
 }