- MaterialChunk: Return false in getTextShader when shaderSize is 0 to
prevent out-of-bounds write of null terminator.
- Ktx1Bundle: In 3-argument constructor, check if total blobs calculation
overflows uint32_t.
- Instead of aborting with FILAMENT_CHECK_POSTCONDITION, log a warning and
set the object to a safe empty state (dimensions set to 0).