v0.16.1

Interface contract: carbon-interface v1.3.3 (unchanged from v0.16.0)
Firmware compatibility: unchanged from v0.16.0

A visualizer bug-fix patch, plus new default background-noise calibrations for three Carbon sensors. No API changes.

New Supported Units

• Background noise calibration: default masks added for CAR-30-012 and
  CAR-30-014, and updated for CAR-30-013. Required to bring up these sensors
  through the compiled binaries (visualizer, CLI, Python/C++ bindings).

New Features

• Playback's "Show invalid points" setting is now a live toggle. A checkbox in
  the rendering panel (playback only) shows or hides sensor-flagged invalid points
  at any time, including while paused. The --keep-invalid-points CLI flag still
  sets its initial state at launch.

Bug Fixes

• The health panel no longer drifts out of sync with a paused live view.
  Pausing a live stream freezes the point cloud, but the sensor-state readout
  (calibration and current SDL configuration) kept updating in the background; it
  now freezes along with the point cloud. Time-sync, comms-health, and
  heartbeat-liveness readouts still update live, since they reflect present-tense
  connection health rather than the frozen frame's calibration.
• Fixed a false latency spike after unpausing a live stream. Any point-cloud
  regeneration while paused — e.g. changing a filter or color setting — was
  incorrectly recorded as a new frame's timing sample, so the latency/FPS stats
  could show a large, misleading spike right after resuming. Only actual new
  frames now feed those stats.
• Switching data sources no longer leaves the previous frame on screen.
  Reconnecting live or switching to playback now clears the display immediately,
  instead of showing the previous source's stale point cloud until the new one
  delivers a frame.