Remove local proto/, buf.yaml, buf.gen.yaml, and generated
internal/api/v1/*.pb.go. The message-plane contract now lives in the
sibling repo kmsvc-proto (forgejo.riotpiao.homelab.com/rock/kmsvc-proto),
fetched via go get — no local buf/protoc plugin install needed.
Nothing in this repo imported internal/api/v1 yet, so this is a clean
swap with no call-site changes.
JWKS caching via lestrrat-go/jwx, signature/iss/aud/exp validation, and
a single gRPC interceptor that grpc-gateway's forwarded headers make
work identically for REST callers.
Adds queue_service.proto (SendMessage, SendMessageBatch, ReceiveMessage,
DeleteMessage, DeleteMessageBatch, ChangeMessageVisibility(Batch)) with
grpc-gateway REST annotations, plus the generated Go server/client and
gateway stubs.
riotpiaole