EB-1: machines can die - structures get HP, Husks raze them, wounded base persists

Structures (Turret/Wall/Pylon) reuse the combat spine: authoring bakes Health(GhostField)+DamageEvent buffer+a Destructible tag (no HitRadius -> no friendly projectile fire; no EffectiveCharacterStats -> clamp-to-0). HealthApplyDamageSystem destroys a Destructible at 0 (occupancy auto-frees). EnemyAISystem fortress-targets the weighted-nearest of players+structures via the shared EnemyAIMath.PickWeightedNearest (StructureAggroWeight TuningConfig knob, <1 prefers structures, squared factor; snapshot above the early-return so an undefended base is razed). Persistence v3: per-structure HP threaded through 5 sites (SaveData/PendingStructure/scan-guarded/BaseRestore same-ECB born-correct/WorldLauncher via SaveApply.ToPending); SaveService floor-gate [2,3] loads old saves. Loss feedback: proximity-gated StructureFeedbackSystem; CombatFeedbackSystem suppressed for structures. Pre-code review caught the DamageEvent-buffer crash blocker + 8 majors; post-code review clean. See DR-032.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Assets/_Project/Scripts/Simulation/Persistence/SaveStructureScan.cs

@@ -35,6 +35,8 @@ namespace ProjectM.Simulation
                     CellX = ps.Cell.x,
                     CellZ = ps.Cell.y,
                     RemainingTicks = ProductionMath.RemainingTicks(ps.NextTick, nowTick),
+                    // EB-1: guarded so automation machines (no Health) don't crash the autosave path (no try/catch).
+                    HP = em.HasComponent<Health>(e) ? em.GetComponentData<Health>(e).Current : 0f,
                 };
 
                 if (em.HasComponent<Conveyor>(e))