Add dappco.re vanity import handler (cmd/vanity-import/) that serves
go-import meta tags, enabling `go get dappco.re/core` to resolve to
forge.lthn.ai/host-uk/core. Deployed as a Docker container behind
Traefik on snider-linux.
Add Woodpecker CI pipeline (.woodpecker/bugseti.yml) for BugSETI
cross-platform builds. Phase 1: Linux amd64 with CGO, triggered on
bugseti-v* tags and main branch pushes to cmd/bugseti/.
Closes#3, closes#9
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>