VelocityNavigator v4.2.0

Added

• Embedded Prometheus Exporter & Admin Panel — Built-in HTTP server exposing real-time metrics (/metrics) on routing distributions, pings, CB statuses, and connection events.
• Grafana Dashboard Setup Command — /vn setup grafana auto-generates a premium, pre-configured Grafana telemetry dashboard configuration JSON file.
• Interactive Selector Menus — Native Bedrock Form GUI (via Geyser/Floodgate integration) and clickable Java Chat Selector Menu with hover tooltips displaying health and latencies.
• Ping-Based Routing Strategy (latency) — Dynamically select the server with the lowest ping latency to optimize player connections.

Fixed

• Hardened Java and Bedrock lobby menu selections so stale or manually forged choices cannot bypass drain mode, circuit breakers, capacity checks, or configured lobby pools.
• Started the Prometheus exporter during initial proxy boot when enabled, not only after /vn reload.
• Restored true consecutive-failure behavior for the circuit breaker.
• Preserved update notification settings during config rewrites and aligned admin join notifications with [update_checker].notify_admins.
• Accepted the documented latency routing mode in config validation and migration normalization.
• Normalized contextual group names consistently so mixed-case mappings continue to route.
• Aligned Maven artifact version, Velocity plugin metadata, and user-facing docs for the 4.2.0 release.

Changed

• Config version bumped to 6. The generated navigator.toml has been completely redesigned with section banners, grouped documentation, and a friendlier layout. Existing configs are auto-migrated and backed up.