Example enc3: m_vecViewOffset (self-visible vector) instead of eye angles

m_angEyeAngles only changes how OTHER players see your aim, so it's invisible
when testing solo (your own view is client-controlled, and the body is
anim-driven). Point enc3 at m_vecViewOffset (a networked vector) = raise the
spoofed client's own camera, visible solo. Also exercises the b3 vector path.
Caveat documented: view offset may be client-predicted from duck state.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>