Better WebConsole

Added

• Added Spanish (es) localization to the web UI language selector.
• Added missing localized labels for sessions, audit, config, diagnostics and player profile fields across supported languages.

Changed

• Replaced OSHI-based system metrics with Java runtime and OS MXBean metrics to reduce shaded dependencies and runtime native-library issues.
• Added stable name attributes to login, console, player, audit, config and modal form controls for better browser autofill and automation compatibility.
• Localized remaining hardcoded player activity and profile labels.

Fixed

• Collected an initial stats snapshot when the plugin starts so the dashboard has data sooner after startup.
• Loaded existing logs/latest.log lines into the web console backlog before live log capture starts.