Document tool annotations, structured logging, sampling summaries,
and the new test_client_capabilities diagnostic tool across getting
started, reference, and architecture pages. Fix Vite 6+ host blocking
when serving behind a reverse proxy.
- Starlight documentation with 12 Diátaxis-organized pages covering
getting started, how-to guides, reference, and architecture
- Docker Compose with two services: docs (Starlight/Caddy) and
mcp (FastMCP streamable-http), both behind caddy-docker-proxy
- Env-based transport selection in server.py — stdio default preserved,
MCP_TRANSPORT=streamable-http activates HTTP mode for Docker
- Ocean/maritime theme with dark mode default
