ci: Gitea Actions build workflow for multi-arch binaries
Triggers:
- On tag push (v*): builds amd64, creates release with artifacts
- Manual dispatch: select targets (amd64, arm64, armv7)
Targets:
- linux/amd64: full build with headless + audio client
- linux/arm64: Raspberry Pi 4/5, cross-compiled (headless)
- linux/armv7: Raspberry Pi 3/Zero 2W, cross-compiled (headless)
Each target produces a tarball with:
wzp-relay, wzp-client, wzp-web, wzp-bench, static/
Uses rust:1-bookworm container to match Debian 12 glibc.
Cargo cache keyed on Cargo.lock for faster rebuilds.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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