Held-item deadline and final factor override

RE-710. Reproduce with python3 scripts/analyze_qvm_damage_interrupt.py; check with python3 scripts/test_qvm_damage_interrupt.py. The machine report retains source identity and bounded fixtures.

Actual290374–290490 reads the active held-slot index client144 and low byte of client312+4×index. Item14 requires factor at least float32(0.2); item23 requires at least0.5. Locations11–14 suppress the client6304=time+200 write. Null clients bypass held reads. Deadline behavior is structurally recovered; its gameplay interpretation remains provisional. Global34066516 nonzero overrides the return to float32(1) only after these effects, leaving local factor and earlier effects intact. Explicit near-overflow clock fixtures expose32-bit wrap without asserting legal server clock domains. No health damage or external calls occur.

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.