Enable Paperless Office/OpenDocument ingestion by wiring internal Tika and Gotenberg services into the documents stack. Adds PAPERLESS_TIKA_* environment keys to .env.example and places both sidecars on an internal-only network with resource limits.
- ai: remove reranker service (moved to Serenity at 10.5.1.5:9787) - ai: add LiteLLM reranker proxy entry for Serenity - ai: configure OpenWebUI to use LiteLLM for reranking - monitoring: add Grafana + Prometheus stack - mesh-mqtt-observer: add new service - automation, documents, meshtastic: misc updates