Audited the generic-S3 path: upload/thumbnail/.torrent, CORS guidance, and the
delete/edit cleanup path-style (incl. the documented vhost bug) were already
tested. The real gap was public-URL resolution — the upload tests mock
buildS3ObjectUrl, so the actual path-style/vhost logic in js/storage/s3-url.js
was unverified.
Added tests/storage/s3-url.test.mjs (11 pure-function scenarios): path-style puts
the bucket in the PATH; vhost puts it in the host subdomain (no double-prefix);
endpoint path-prefix preserved; bare-endpoint https upgrade; key/slash
normalization; explicit publicBaseUrl wins; missing inputs → "". Also covers
s3Service.derivePublicBaseUrl / buildS3ObjectUrl. Closes#6.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
