Agentplane 0.4.1: hosted close and release evidence

Agentplane 0.4.1 was a small release with one important theme: make closure easier to prove.

The branch_pr workflow already separates implementation work from base-branch integration. 0.4.1 tightened the hosted-close path so protected main repositories can hand off to GitHub PR merges without pretending that a local integrate command mutated the base branch.

The release also improved the evidence trail around publishing. Release tasks now preserve clearer notes about what was checked, which artifact or channel was prepared, and what still requires a hosted action. That matters because release failures are rarely one command. They are a chain of version parity, generated assets, package metadata, remote checks, and final publication.

For users, the visible effect is quieter: fewer ambiguous close states, better release notes, and a workflow that treats protected branches as a real boundary instead of a nuisance.

That is the direction of the 0.4 line: keep Agentplane local-first, but make every important state transition explain itself.