patch-orbit v0.1.0

Initial release: map two committed Go snapshots to a conservative package review scope, with shortest import chains and source evidence.

Unzip a binary, then run orbit -repo YOUR_GO_REPO -base HEAD~1 -head HEAD -html impact.html. Requires Git; no model API key. The report does not execute tests. Demo HTML is generated from synthetic fixture commits.

Validated: Go 1.23/1.27 on Windows and Linux; unit/Git integration tests and vet; Linux race detection; Windows executable smoke test. Linux amd64 and macOS arm64 binaries are cross-compiled. Package imports only, including tests and all build-tag variants; no runtime safety guarantee.