Commit builds use their own immutable namespace and the shared signed
transport. Publish each receipt after its files, and fetch shared files
once only when their receipt records agree.
Summary links retain the full object key. A completed row requires its
own validated receipt and listed object. Missing, corrupt and ambiguous
results remain distinct. Include both universal Windows bundles.
Verified: 85 tests passed across transfer, rendering, candidate and
promotion paths. The subprocess test fetches the rendered download URL
from loopback HTTP. Ruff and added-comment checks passed.
No live R2 writes, workflow dispatch or native package build ran.
The commit-build CLI and workflow changes remain separate drafts.
1c4093fdc9