Scaffolds the server module and everything Phase 0 of PLAN.md calls for:
a binary that boots, serves its discovery endpoints and nothing else yet.
- config: one YAML file plus per-field WARP_* environment overrides,
unknown fields rejected, validation that reports every problem at once
- logging and metrics: slog, a Prometheus registry, per-route HTTP
instrumentation labelled by pattern rather than path
- httputil: the Matrix error envelope, error-returning handlers, CORS,
request logging, panic recovery, and a router over http.ServeMux
- endpoints: /_matrix/client/versions, /.well-known/matrix/client,
/.well-known/matrix/server (gated), /healthz, /metrics, and
M_UNRECOGNIZED for everything else
- storage: driver registry, shared database/sql base, checksummed
migration runner, sqlite and postgres drivers, pocketbase stub
- settings: server_settings table behind a cached service, so the
federation and registration switches change without a restart
- federation: the gate that makes federation a runtime mode
- cmd/warp: serve, migrate, generate-keys, version
- Makefile, golangci-lint v2, GitHub Actions CI (Linux and Windows tests,
race on Linux, storage tests against PostgreSQL, lint, boot smoke test),
Dockerfile, example config and docs
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
