X_CASSETTE_MISSING
Means
a cassette replayed with no recording on disk
Typical cause
cassette() ran in replay mode and <dir>/cassettes/<name>.json does not exist: the test was never recorded, or the file was renamed
Fix
ULTIMATE_CASSETTE=record bun test <file> — with cassette(import.meta.dir, <name>, { record: { hosts: [<host>] } })