v0.9.0

Added

• check_health tool — test API connectivity, auth status, and config in one call; triggers Kerberos re-auth automatically via the api() wrapper
• Startup Kerberos auth retry with backoff (3 attempts, 5s/10s delays) — prevents MCP server startup failure when the Kerberos ticket is not yet valid
• _sanitize_url() helper — strips credentials from URLs for safe display in tool responses
• Tool count consistency test — prevents drift between __init__.py, CLAUDE.md, and README.md

Fixed

• Startup auth logs now include the exception details for production debuggability