docs/research/QVM_LOCATION_NEAREST.md

Recover cached trigger and nearest location selection

RE-1034. Focused validation: cargo xtask test-group qvm-location-nearest. Machine report.

Sixteen original-QVM cases recover268248. A cached pointer returns only before its signed expiry. Otherwise a supplied box query over origin±40/40/52 chooses the first case-insensitive trigger_location candidate, or a linked-list fallback selects visible squared-distance≤best, so later equal-distance entries win. PVS is queried only for candidates within the current bound201326592. Cache fields are not written. Native box/PVS replies and linked identity remain supplied.