docs/research/QVM_CLIENT_COMMAND_REWRITE.md

Original command angle preservation and movement-byte masking

RE-976. Focused validation: cargo xtask test-group qvm-client-command-rewrite. Machine report.

Forty-eight source command-rewrite cases recover pause-mask1 and mode10/client-mask16 locking, saved-angle restore versus update, and independent server override. Clearing bytes493..495 preserves the low byte492 and command timestamp; buttons clear separately. Other pause bits alone do not trigger this lock. Native later movement execution remains outside this fragment.