v0.15.0

Added

• A monitoring-data receipt age on every GUI page, with a stale-data warning
  after a sampling failure or a delayed update. The last received values remain
  visible. The timeout allows slower sampling intervals; successful updates
  clear the warning. All five interface languages are supported.
• Resources reserved for RustWTM ([reserve]): while the CPU is overloaded a
  rescue core is kept free for RustWTM and Windows by moving other programs off
  it with CPU Sets, and handed back when the load recovers. The service keeps
  working_set_mb resident and opts out of EcoQoS; the window runs above
  normal priority with 64 MB resident. Shown on the Overview and in the status
  bar, configurable in Settings.
• Window drawing times on the About page, and RUSTWTM_FRAME_REPORT=<file>
  to benchmark every page and write per-page frame timings.

Changed

• The window reads command lines and image paths of new processes without
  holding the data lock it needs for every frame, so a burst of new processes
  no longer stalls drawing. The About logo is uploaded once instead of every
  frame, and the Overview cards line up at equal height.
• IPC protocol version 12 (status carries the rescue core).