Better WebConsole

Added

• Added machine/system metrics to the dashboard:
  • host CPU load and Java process CPU load
  • CPU model and core/thread count
  • physical RAM total/used/free
  • JVM heap and non-heap memory
  • JVM uptime
  • server disk total/used/free
  • OS, Java version, process id and JVM thread count
• Added system-stats config section to enable/disable system metrics, control polling interval and disk reporting.

Changed

• Reworked the dashboard desktop layout into a wider two-column admin view with grouped health, charts, machine details and analytics.
• Added hover states to Machine Details cards to match KPI and chart cards.

Fixed

• Fixed repeated Players tab entrance animation loops by preventing re-animation on active-tab clicks and unchanged player lists.
• Fixed OSHI configuration warning by keeping OSHI package/resource names unrelocated in the shaded jar.