v0.1.0

Add workflow_dispatch recovery path to publish workflow (#474)

When a tag-triggered publish run partially succeeds and then halts
(e.g. crates.io sparse-index propagation times out after the first
crate uploads), there was no way to resume without re-publishing the
crates the registry already accepted.

Adds `workflow_dispatch` with `from_crate` and `no_wait` inputs that
pass through to `cargo xtask publish`, so resuming a v0.1.0 release
after a partial failure is one `gh workflow run` away.

Co-authored-by: Test User <test@test.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>