refactor(types): make TeePlatform::as_str public (#330)

TeePlatform::as_str() was only to pub(crate), so the CLI kept a platform_str helper that round-trips TeePlatform through serde just to read its wire string. Make the accessor pub and drop the workaround.

release: v0.17.0-rc5 (#326)

release: v0.17.0-rc4 (#324)

release: v0.17.0-rc3 (#322)

release: v0.17.0-rc2 (#320)

test(cli): cover the vprogram create --wait JSON payloads (#316)

release: v0.16.0 (#302)

feat(sdk): default upload idle timeout to 120s, add env override (#295)

Large files on slow-but-healthy links were still hitting the 60s idle
timeout. Raise the default no-progress window to 120s (SDK default and
CLI), and add an ALEPH_UPLOAD_TIMEOUT escape hatch to override it: a
number of seconds sets the idle window, none/0 disables the SDK-managed
deadline entirely.

Parsing lives in a FromStr impl on UploadTimeout; the CLI reads the env
var in common::resolve_upload_timeout.

release: v0.14.0 (#277)

release: v0.13.2 (#271)