v2.2.1 — docs sweep for v2.1/v2.2 services Docs-only patch on top of v2.2.0. No code, no config schema, no behaviour changes — only documentation accuracy. README - Intro, resource management, usage curl examples, Logs and Debugging table, troubleshooting, and the "Full usage guide" blurb all now thread predictalot / mailbox / telethon mentions where the surrounding section was listing capabilities. docs/usage.md - Four new sections: Web search (SearXNG MCP), Time-series forecasting (predictalot), Email gateway (mailbox), Telegram client (telethon). docs/testing.md - Test-suite list extended with the new predictalot, mailbox, telethon suites + the opt-in mailbox e2e gate. litellm/config/mcp/mcp.yaml - mcp_tools aggregator description now lists search_web alongside generate_image and generate_tts.