v0.8.3

Node runtime support

• Added release validation for the same N-API prebuilds on Node.js 24, 25, and 26.
• Kept prebuild output split by supported OS/arch/libc instead of Node major ABI.
• Added a Node-API boundary guard so release checks fail if direct Node, V8, NAN, or libuv addon APIs are introduced.

Release automation

• Bumped the package line to 0.8.3, including Cargo metadata, native sidecar package manifests, and root optional sidecar pins.
• Updated the release workflow so npm publishing runs only after prebuild creation and Node 24/25/26 validation complete.
• Preserved the publish order of native sidecar packages first and the root @currentspace/http3 package last.