Package native binary via GraalVM (linux/macOS, brew distribution)

[syncended]

Goal

Ship yapi as a standalone native binary so users can install it via Homebrew / a single download, without a JVM on their machine.

Status

Post-MVP. v0.1.0 ships as a JVM application (`installDist` / `distZip` from the Gradle `application` plugin). Native packaging unlocks proper Linux/macOS distribution and `brew install yapi`.

Scope

• GraalVM native-image build for:
  • linux-x86_64
  • linux-aarch64
  • darwin-x86_64
  • darwin-aarch64
• Resolve native-image surprises:
  • Reflection config for Ktor engine, kotlinx.serialization, mordant.
  • Resource includes (default config templates etc.).
  • Coroutine debug agent off in release.
• CI:
  • Cross-compile/build matrix in GitHub Actions.
  • Upload binaries as release artifacts.
• Distribution:
  • Homebrew tap / formula (`syncended/tap/yapi` or similar).
  • Linux: tarball release + optional AUR/deb later.

Out of scope

• Windows binary (separate issue).
• App bundle / signed installer for macOS.

Acceptance criteria

• `brew install /yapi` installs and runs on macOS arm64 and x86_64.
• A static-ish Linux binary runs on Ubuntu LTS and Alpine (musl variant if feasible) without a JVM.
• Release workflow attaches per-platform binaries to GitHub Releases.