Grenade record construction and inherited velocity

RE-600. Reproduce with python3 scripts/analyze_qvm_grenade_setup.py; check with python3 scripts/test_qvm_grenade_setup.py. The machine report retains source identity and bounded fixtures.

File-backed classname97541 is grenade. Actual31691 finds weapon7's first slot and decodes its mode; a missing−1 slot reads the explicitly supplied adjacent PS308 fixture rather than inventing a valid slot. Global forwardZ adds source.2, then actual float operations use a supplied finite sqrt to normalize unless zero.

With a supplied277165 record, the body initializes type/trajectory/owner/flags/mask/timing and numeric scalar fields and copies global muzzle to base/live origin. Direction×source speed7304+52×mode is truncated to integer then converted back to float, after which owner PS velocity is added. A supplied276433 query result contributes its velocity only when its entity ID matches PS ground.

37 fixtures reconstruct every record word and transformed forward vector independently. The exact query hash/arguments and supplied record pointer are retained. Allocator/query engine effects, entity linking, trajectory integration, explosion and damage are not executed. Construction alone does not prove a working projectile or native outcome.

No original executable/full QVM/native collision/physics/rendering executes. Native responses and legal input domains are supplied or unverified where stated; full runtime/macOS/Linux Rust/Bevy/Solari gameplay remains open.