MRPS v8 Quest GPU unsigned-short fix
====================================

Open index.html after unzipping.

This build fixes the Quest Browser error from v7:
  GPU depth texture draw failed with GL error 0x502 for unsigned-short.

Main change:
  The encoder no longer assumes a single unsigned-short texture interpretation.
  It first makes the XR depth texture NEAREST/CLAMP, then tries R16UI integer,
  normalized red-channel, and luminance-alpha-compatible unpack readback.

If it still fails, screenshot the full status text. v8 reports all readback
attempts and their GL errors.