v0.4.0 — reconnect + releases

Highlights

• Agent auto-reconnect after unexpected upstream loss (stable MCP node_id reonline; intentional SHUTDOWN disables retry)
• Multi-arch release assets (linux-amd64 / darwin-arm64 / windows-amd64) + SHA256SUMS
• Docs: Codex MCP setup, Go badge alignment, CI workflow on main

Lab gate (authorized)

Smoke on edge 10.7.10.243 (172.16.23.10, EyouCMS/ThinkPHP foothold → agent node 0):
list_nodes, start_cmd, start_socks, start_forward, upload_file/pull_file, start_scan, start_listener, start_backward — PASS.

Assets

Archive	Contents
styx-mcp_v0.4.0_linux-amd64.tar.gz	controller + agent
styx-mcp_v0.4.0_darwin-arm64.tar.gz	controller + agent
styx-mcp_v0.4.0_windows-amd64.zip	controller.exe + agent.exe
SHA256SUMS.txt	checksums

Controller and agent must share the same secret and matching release after protocol changes.

Note: GitHub Actions returned startup_failure for this repo at cut time; assets were built locally with make build-all and attached via gh release create.