- Add getIsoTimestamp() to timeUtils for JS-compatible ISO 8601 strings
- Replace getUtcTimestamp() (epoch float) with getIsoTimestamp() for all
teamsbot session/transcript/response timestamp fields (startedAt, endedAt,
creationDate, lastModified, SSE event timestamps)
- Pass config.language to browser bot in join request for captions spoken language
Co-authored-by: Cursor <cursoragent@cursor.com>
