Re-pins proxbox-api==0.0.9.post2 (fixes create_storages() TypeError regression in 0.0.9.post1).
Supersedes v0.0.13.post3 which never reached PyPI: that publish run failed validate-testpypi due to a stale uv.lock (lockfile pinned 0.0.13.post2 while pyproject.toml was 0.0.13.post3, breaking uv sync --locked). This release regenerates the lockfile and bumps to .post4 to avoid any TestPyPI republish ambiguity.
No runtime behavior change — packaging/compat-pin bump only.