Reword comments and docs that still named the removed gRPC stack, rename
the GRPCSortable test interface, and drop the dead gRPC port note from the
dev README.
Drop grpc_listen_addr/grpc_allow_insecure config, the gRPC auth integration
tests, GrpcSocketDialer, and stale gRPC comments now that the API is HTTP-only.
dev derives additional ports from --port + offsets (metrics, gRPC,
debug). A --port near uint16 max would overflow silently; add up-front
validation that rejects values that would push derived ports over 65535.
Updates #3157
Add a lightweight dev tool that starts a headscale server on localhost
with a pre-created user and pre-auth key, ready for connecting real
tailscale nodes via mts.
The tool builds the headscale binary, writes a minimal dev config
(SQLite, public DERP, debug logging), starts the server as a
subprocess, and prints a banner with the server URL, auth key, and
mts usage instructions.
Usage: go run ./cmd/dev
make dev-server
Kristoffer Dalby