Widen ACP post-response drain window for late updates.

Restrict crate package contents with an explicit include list.

Add crates.io package metadata for agentmux.

Harden relay stream socket option resets on reconnect.

Harden relay stream reconnect on transient connect errors.

Harden ACP integration timing assertions for CI variance.

Stabilize Unix socket unit tests on macOS.

Harden fake relay socket reads for macOS behavior.

Update checkout action and remove dead test helper.

Fix clippy compatibility with newer Rust toolchains.

Move workflow comments outside jq matrix payload.

Set default look policy to all:home.

Default Opencode coder template to ACP transport.

Fix send message parsing for empty non-tty stdin.

Add Windows support to planned features.