New MCP server (app/gramps_mcp_server/) that exposes the GrampsWeb REST API
as 12 MCP tools for genealogy data access: person_suchen, person_details,
familie_details, ereignis_details, ort_suchen, ort_details, quelle_suchen,
quelle_details, stammbaum_export, stammbaum_info, medien_liste, notiz_details.
Includes HTTP client with auto-login/token management and Docker compose
services for both prod and dev environments.
Co-Authored-By: Paperclip <noreply@paperclip.ing>
