agentbridge: Bun compile pipeline → 8 target binaries → GitHub Releases

[espetro]

Context

Drop Node SEA, drop Rust. Bun compile is the build target. 8 OS/arch targets attached to GitHub Releases on tag push.

Tasks

• scripts/build-binaries.sh cross-compiles 8 targets via bun build --compile
• .github/workflows/release.yml runs the script on tag push
• Targets: darwin-{arm64,x64}, linux-{x64,arm64}, linux-{x64,arm64}-musl, windows-{x64,arm64}
• bun build --compile --minify --bytecode --target=<triple>
• Generate SHA256SUMS file per release
• tar.gz per target with binary + README + LICENSE

Source

• scripts/build-binaries.sh (new)
• .github/workflows/release.yml (modify)
• Plan: .agents/plans/2026-06-14-v0.2.0-distribution-pivot.md