A lone warrior stands firm before an endless horde at the bridge.

run last_stand:   + SPINE   lone_subject       := infer the single defender — stance, wounds, weapon, resolve in the body language   opposing_force     := infer the overwhelming many — horde / army / swarm / machines (inferred, never hardcoded)   horde_density      := infer how the mass fills depth — front rank sharp, deep ranks dissolving into dust + haze   ground_truth       := infer the terrain chosen to die on — chokepoint, bridge, gate, ridge, doorway   evidence_of_fight  := infer the cost already paid — fallen bodies, broken weapons, scorch, spent shells, blood in mud   point_of_no_return := infer what's behind them worth dying for (off-frame is fine — implied stakes hit harder)  PHYSICS:   - the lone subject is the brightest, sharpest element; the horde recedes via atmospheric compression   - one key light rakes across the scene to separate THE ONE from THE MANY   - front-rank enemies cast contact shadows toward the defender; never copy-paste identical figures up front  FORBIDDEN:   - no symmetrical "two equal sides," no clean bloodless field, no relaxed hero, no faceless cloned front rank   - no triumphant smirk — this is grim resolve, not a flex