Fix wheel build: include vendored binaries via artifacts, not force-include

[Moge800]

Summary

Fixes a latent packaging bug that would have failed every wheel build on the first release.

[tool.hatch.build.targets.wheel.force-include] re-added the entire binaries/ directory on top of hatchling's normal package scan, so building a wheel aborted with:

ValueError: A second file is being added to the wheel archive at the same path: `gomc_rest/binaries/.gitignore`.

This never surfaced in CI because release.yml (the only workflow that builds wheels) runs on tags only — it was found by building locally for testing.

Fix

Replace force-include with artifacts:

[tool.hatch.build.targets.wheel]
packages = ["src/gomc_rest"]
artifacts = ["src/gomc_rest/binaries/gomc-rest*"]

The vendored binaries are gitignored, so artifacts is the correct mechanism to ship them; the tracked files in that directory (README, .gitignore) are picked up once by the normal package scan.

Verified locally

• Wheel builds with a vendored binary → binary included once, no duplicates (gomc_rest/binaries/gomc-rest.exe / gomc-rest-linux-amd64).
• Wheel builds without any binary (sdist-fallback state) → succeeds, no binary.
• Built win_amd64 and manylinux_2_34_x86_64 wheels; installed the Linux wheel into a fresh venv and confirmed launch() starts the bundled v1.4.0 server (health OK, token auth on) and connect() works.
• Full test suite: 5 passed (including the real-launch smoke tests with a checksum-verified binary).

🤖 Generated with Claude Code

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Generated by Claude Code

[Copilot]

Pull request overview

This PR fixes a wheel-packaging failure caused by Hatchling adding the same files twice when [tool.hatch.build.targets.wheel.force-include] re-included the already-scanned src/gomc_rest/binaries/ directory. It switches to using Hatch’s artifacts mechanism so only the vendored, gitignored platform binary is conditionally included in the wheel without duplicating tracked files (e.g., README.md, .gitignore).

Changes:

• Replace [tool.hatch.build.targets.wheel.force-include] with artifacts = ["src/gomc_rest/binaries/gomc-rest*"] to avoid duplicate wheel paths.
• Update the inline comment to document why artifacts are used for gitignored, build-time-vendored binaries.

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