determinism-ledger: every ItemManager states its seed; scatter on the zone's dice

- ItemManager(uint seed, ...) refuses seed 0 and seeds Random from it.
- RunStart.ItemSeed(galaxy, step) is public (formula unchanged), refuses a
  zero result; named steps ArenaStep, StageStep, ContinueStep and NoRunSeed.
- Continue seeds the item stream from the saved run's seed (ContinueStep);
  a scene with no galaxy uses NoRunSeed.
- Zone's unpack scatter draws SimulationDice.For(CombatSeed, ScatterStream,
  1-based pack ordinal), never the item stream.
- Loadout's scratch manager and AetherDb's catalog command take fixed seeds;
  every test and Editor construction gains 1u (mechanical rewrite).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Assets/Scripts/Editor/BeltFloaterLayerVerify.cs

@@ -122,7 +122,7 @@ namespace Aetheria.EditorTools
             var cache = AetheriaStores.Open(Path.Combine(_work, "belts.cc"), Path.Combine(_work, "belts-run.cc"), catalogWritable: true);
             cache.Upsert(new VerseGrammar { Revision = 1 });
             cache.FlushAsync().Wait();
-            var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
 
             CultRecordKey Orbit(CultRecordKey parent, float distance, float phase, float2 fixedPosition = default)
             {

Assets/Scripts/Editor/CapabilityPresentationSmoke.cs

@@ -62,7 +62,7 @@ public static class CapabilityPresentationSmoke
         cache.FlushAsync().Wait();
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 8; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Smoke", Owner = null }, null);
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Smoke Hull"));
         var ship = new Ship(items, zone, new EquippableItem { Data = hullRef, Durability = 1000, Lot = 1 }, new EntitySettings());

Assets/Scripts/Editor/DrawnPoseWiringVerify.cs

@@ -115,7 +115,7 @@ namespace Aetheria.EditorTools
             cache.Upsert(new SimpleCommodityData { Name = "Wiring Ore", Shape = oneCell, MaxStack = 100 });
             cache.FlushAsync().Wait();
             var ledger = new ProvenanceLedger();
-            var items = new ItemManager(cache, ledger, settings, _ => { });
+            var items = new ItemManager(1u, cache, ledger, settings, _ => { });
 
             // A sun and a planet on a moving rail round it, both near the bodies below: the field under a floater changes with the
             // drawn time, so a presenter that samples it at the step's time, drops it, or reads lead 0 for the height draws a different y.

Assets/Scripts/Editor/FloatingItemsDrawnSmoke.cs

@@ -124,7 +124,7 @@ public static class FloatingItemsDrawnSmoke
         cache.FlushAsync().Wait();
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 8; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), null, null);
         EquippableItem Make(string name, int lot) => new EquippableItem
         {

Assets/Scripts/Editor/FlowFieldParityVerify.cs

@@ -106,7 +106,7 @@ namespace Aetheria.EditorTools
             var cache = AetheriaStores.Open(Path.Combine(work, Guid.NewGuid().ToString("N") + ".cc"), catalogWritable: true);
             cache.Upsert(new VerseGrammar { Revision = 1 });
             cache.FlushAsync().Wait();
-            var items = new ItemManager(cache, new ProvenanceLedger(), settings.GameplaySettings, _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings.GameplaySettings, _ => { });
             return new Zone(items, new PlanetSettings { Flow = flow }, new ZonePack { Time = time }, new GalaxyZone { Name = "Parity", Owner = null }, null);
         }
 

Assets/Scripts/Editor/GravityFieldParityVerify.cs

@@ -154,7 +154,7 @@ namespace Aetheria.EditorTools
             var cache = AetheriaStores.Open(Path.Combine(work, "catalog.cc"), Path.Combine(work, "run.cc"), catalogWritable: true);
             cache.Upsert(new VerseGrammar { Revision = 1 });
             cache.FlushAsync().Wait();
-            var items = new ItemManager(cache, new ProvenanceLedger(), settings.GameplaySettings, _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings.GameplaySettings, _ => { });
             var positions = new List<Vector2> { new Vector2(-130f, 85f), new Vector2(610f, -240f), new Vector2(670f, -270f), new Vector2(1700f, 300f) };
             var masses = new List<float> { 14152f, 273.9f, 29.2f, 0f };
             var parents = new List<int> { -1, 0, 1, -1 };

Assets/Scripts/Editor/MapBeltPerf.cs

@@ -52,7 +52,7 @@ public static class MapBeltPerf
             Planets = { new CultRecordRef<BodyData>(sunKey), new CultRecordRef<BodyData>(beltKey) },
             Radius = 5000f, Mass = 10000f, Time = 0
         };
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings.GameplaySettings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings.GameplaySettings, _ => { });
         var zone = new Zone(items, new PlanetSettings
         {
             BodyRadius = new ExponentialCurve(), WellStrength = new ExponentialCurve { Multiplier = 1f, Exponent = 1f },

Assets/Scripts/Editor/MapPresenterSmoke.cs

@@ -115,7 +115,7 @@ public static class MapPresenterSmoke
         };
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 8; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings.GameplaySettings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings.GameplaySettings, _ => { });
         var zone = new Zone(items, planetSettings, pack, new GalaxyZone { Name = "Smoke", Owner = null }, null);
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Smoke Hull"));
         var ship = new Ship(items, zone, new EquippableItem { Data = hullRef, Durability = 1000, Lot = 1 }, new EntitySettings());

Assets/Scripts/Gameplay/ActionGameManager.cs

@@ -294,7 +294,11 @@ public class ActionGameManager : MonoBehaviour
         ConsoleController.MessageReceiver = this;
         
         // A new run mints into an empty ledger; the saved run's stays in the store until the new run has started.
-        ItemManager = new ItemManager(CultCache, PendingScenario != null ? new ProvenanceLedger() : RunSave.Lots(CultCache),
+        // A new run is reseeded by RunStart; Continue's item draws come from the saved run's seed.
+        ItemManager = new ItemManager(
+            CurrentGalaxy == null ? RunStart.NoRunSeed
+                : RunStart.ItemSeed(CurrentGalaxy, PendingScenario != null ? RunStart.ArenaStep : RunStart.ContinueStep),
+            CultCache, PendingScenario != null ? new ProvenanceLedger() : RunSave.Lots(CultCache),
             Settings.GameplaySettings, Debug.Log);
         ZoneRenderer.ItemManager = ItemManager;
         

Assets/Scripts/ServerShared/ItemManager.cs

@@ -17,6 +17,8 @@ using float4 = CultMath.float4;
 
 public class ItemManager
 {
+    // The item stream: each lot's quality and each generated fit. Seeded by whoever constructs the manager and reseeded
+    // by RunStart at each step of a new run, never by the clock.
     public Random Random;
 
     private Action<string> _logger;
@@ -25,8 +27,10 @@ public class ItemManager
     public ProvenanceLedger Lots { get; }
     public GameplaySettings GameplaySettings { get; }
 
-    public ItemManager(CultCache itemData, ProvenanceLedger lots, GameplaySettings settings, Action<string> logger)
+    public ItemManager(uint seed, CultCache itemData, ProvenanceLedger lots, GameplaySettings settings, Action<string> logger)
     {
+        if (seed == 0) throw new ArgumentOutOfRangeException(nameof(seed), "an item stream needs a nonzero seed");
+        Random = new Random(seed);
         ItemData = itemData;
         Lots = lots;
         GameplaySettings = settings;

Assets/Scripts/ServerShared/Loadout.cs

@@ -127,6 +127,9 @@ public static class Loadouts
     // The quality a design no manufacturer makes is built at: the console give's.
     public const float UnbrandedQuality = .95f;
 
+    // The seed of the scratch item manager a fit is tried on. It draws nothing, so any nonzero constant does.
+    private const uint ScratchSeed = 1u;
+
     // All-or-nothing: returns an entity only when every design resolved and fitted, the loadout has at most
     // WeaponGroupCount weapon groups, and every group index names a weapon slot. Every failure of a stage is listed; on any
     // failure nothing is returned and the zone and cache are unchanged. The stages run in the order that puts refusal
@@ -166,7 +169,7 @@ public static class Loadouts
 
         // The cells fit or they do not whatever brand a design-only slot takes: the shape is the design's. Tried on its own
         // item manager, so nothing is minted into the live ledger and nothing is drawn.
-        var scratch = new ItemManager(cache, new ProvenanceLedger(), itemManager.GameplaySettings, _ => { });
+        var scratch = new ItemManager(ScratchSeed, cache, new ProvenanceLedger(), itemManager.GameplaySettings, _ => { });
         Assemble(scratch, null, hullData, loadout, Unbranded(scratch, hullSettled), slotsSettled.Select(settled => Unbranded(scratch, settled)).ToArray(), failures, out _);
         if (failures.Count > reported) return null;
 

Assets/Scripts/ServerShared/RunStart.cs

@@ -25,7 +25,7 @@ public static class RunStart
 
     public static ZonePack GenerateArena(ItemManager itemManager, ZoneGenerationSettings zoneSettings, PlanetSettings planetSettings, Galaxy galaxy, Scenario scenario)
     {
-        SeedItems(itemManager, galaxy, 1);
+        SeedItems(itemManager, galaxy, ArenaStep);
         return galaxy.Entrance.PackedContents = ZoneGenerator.GenerateZone(
             itemManager, zoneSettings, planetSettings, galaxy, galaxy.Entrance, galaxy.IsPrelude, scenario.Ambient);
     }
@@ -36,7 +36,7 @@ public static class RunStart
     public static Staged Stage(ItemManager itemManager, Zone arena, Scenario scenario, string startingHull,
         TutorialGenerationSettings tutorialGenerationSettings, List<string> failures)
     {
-        SeedItems(itemManager, arena.Galaxy, 2);
+        SeedItems(itemManager, arena.Galaxy, StageStep);
         var stage = new ScenarioStage(itemManager, arena, startingHull, tutorialGenerationSettings);
         scenario.Stage(stage);
         var reported = failures.Count;
@@ -62,5 +62,22 @@ public static class RunStart
     // so a fixed seed fixes the arena's gear and the player's fit. Each step draws its own stream, so whatever runs
     // between them (populating the level) cannot shift it.
     private static void SeedItems(ItemManager itemManager, Galaxy galaxy, uint step) =>
-        itemManager.Random = new Random(galaxy.Seed * 0x9E3779B1u + step);
+        itemManager.Random = new Random(ItemSeed(galaxy, step));
+
+    // The steps of a run that draw items: generating its arena, staging its scenario, and continuing a saved run.
+    public const uint ArenaStep = 1;
+    public const uint StageStep = 2;
+    public const uint ContinueStep = 3;
+
+    // The item seed of an ActionGameManager scene opened with no galaxy. No run is loaded, so nothing a run decides
+    // draws from it.
+    public const uint NoRunSeed = 0x5EED0001u;
+
+    // The item stream's seed for one step of a run: the run's seed and the step. Never zero, which no stream accepts.
+    public static uint ItemSeed(Galaxy galaxy, uint step)
+    {
+        var seed = galaxy.Seed * 0x9E3779B1u + step;
+        if (seed == 0) throw new InvalidOperationException($"Item seed is zero for galaxy seed {galaxy.Seed} at step {step}.");
+        return seed;
+    }
 }

Assets/Scripts/ServerShared/SimulationDice.cs

@@ -14,6 +14,10 @@ public static class SimulationDice
     // never rides ItemManager.Random, so minting items cannot change how a pilot fights.
     public const uint CombatSampleStream = 3;
     public const uint PatrolStream = 4;
+    // Generation placement of an unpacked ship packed at the origin, ordinal its 1-based index in the pack, on the zone's
+    // seed (CombatSeed): the run seed feeds drops and mines only (ruling run-seed-drops-only), and placement never rides
+    // ItemManager.Random.
+    public const uint ScatterStream = 5;
 
     // 9.1 (docs/fire-control-cut.md): fmix32, MurmurHash3's 32-bit finalizer -- xor-shift, multiply,
     // xor-shift, multiply, xor-shift. Diffuses a structured seed (a zone seed XORed with a small,

Assets/Scripts/ServerShared/Zone.cs

@@ -266,11 +266,18 @@ public class Zone
             foreach (var wear in pack.ChunkWear)
                 _wear[new ChunkId(wear.Field, wear.Index)] = new ChunkWear { Damage = wear.Damage, BrokenUntil = wear.BrokenUntil };
 
+        var ordinal = 0u;
         foreach (var entityPack in pack.Entities)
         {
+            ordinal++;
             var entity = EntitySerializer.Unpack(_itemManager, this, entityPack);
             var ship = entity as Ship;
             Admit(entity, piloted: ship is {IsPlayerShip: false});
+            // Generation placement, not admission: a ship packed at the origin is scattered across the zone, on the
+            // zone's own dice, so nothing drawn from the item stream can move it.
+            if (ship is {IsPlayerShip: false} && lengthsq(ship.Position) < 1)
+                ship.Position = SimulationDice.For(CombatSeed, SimulationDice.ScatterStream, ordinal)
+                    .NextFloat3(float3(-pack.Radius * .5f), float3(pack.Radius * .5f));
         }
 
         // TODO: Associate planets with stored entities for planetary colonies

tests/Aetheria.Shared.Tests/AssemblyFromMakerTests.cs

@@ -25,7 +25,7 @@ public sealed class AssemblyFromMakerTests : IDisposable
             Roles = { new ItemRole { Name = "lens" } }
         });
         _lens = new CultRecordRef<CraftedItemData>(gear.Key);
-        _items = new ItemManager(_cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
     }
 
     public void Dispose()

tests/Aetheria.Shared.Tests/BrownoutTests.cs

@@ -101,7 +101,7 @@ public sealed class BrownoutTests : IDisposable
 
     private Ship BuildShip(CultCache cache, float reactorCharge)
     {
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());

tests/Aetheria.Shared.Tests/ChildrenWithinReachTests.cs

@@ -42,7 +42,7 @@ public sealed class ChildrenWithinReachTests : IClassFixture<ChildrenWithinReach
                     authored.Read<SectorBackgroundSettings>("TutorialBackgroundSettings"),
                     cache, new PlayerSettings(),
                     Directory.CreateDirectory(Path.Combine(dir, "Narrative")), _ => { }, null, seed);
-                var items = new ItemManager(cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
+                var items = new ItemManager(1u, cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
                 var planetSettings = authored.Read<PlanetSettings>("PlanetSettings");
                 foreach (var galaxyZone in galaxy.Zones)
                 {

tests/Aetheria.Shared.Tests/ConditionRatioTests.cs

@@ -84,7 +84,7 @@ public sealed class ConditionRatioTests : IDisposable
 
     private Ship BuildShip(CultCache cache, float reactorCharge, out EquippedItem consumer)
     {
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());

tests/Aetheria.Shared.Tests/ConsumableAiTests.cs

@@ -147,7 +147,7 @@ public sealed class ConsumableAiTests : IDisposable
         settings.UnaidedPrecision = 2f;
         settings.AgentMinHitProbability = 0f;
         settings.BeamResolveInterval = .1f;
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var maker = cache.RefOf(cache.GetByName<Faction>("Maker"));
         EquippableItem Make<T>(string name) where T : CraftedItemData =>
             (EquippableItem) items.CreateInstance(items.CreateLot(cache.GetByName<T>(name), maker, .5f));

tests/Aetheria.Shared.Tests/ConsumableSupplyTests.cs

@@ -153,7 +153,7 @@ public sealed class ConsumableSupplyTests : IDisposable
         return new Rig
         {
             Cache = cache,
-            Items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { }),
+            Items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { }),
             Galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { }),
             Maker = cache.GetByName<Faction>("Maker")
         };
@@ -281,7 +281,7 @@ public sealed class ConsumableSupplyTests : IDisposable
         var authored = AuthoredSettings.Load(repo);
         var galaxy = new Galaxy(authored.Read<TutorialGenerationSettings>("TutorialGenerationSettings"),
             authored.Read<SectorBackgroundSettings>("TutorialBackgroundSettings"), cache, new PlayerSettings(), Directory.CreateDirectory(Path.Combine(_root, "Narrative")), _ => { }, null, 1);
-        var items = new ItemManager(cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
 
         int stations = 0, ships = 0;
         for (var i = 0; i < Seeds; i++)

tests/Aetheria.Shared.Tests/ConsumableTests.cs

@@ -76,7 +76,7 @@ public sealed class ConsumableTests : IDisposable
         var otherRef = cache.Upsert(new ConsumableItemData { Name = "Flare", Duration = 1f, Shape = new Shape() });
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var makerRef = cache.RefOf(cache.GetByName<Faction>("Maker"));
         EquippableItem Gear(EquippableItemData design) => (EquippableItem) items.CreateInstance(items.CreateLot(design, makerRef, .5f));
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);

tests/Aetheria.Shared.Tests/ContactRevealTests.cs

@@ -173,7 +173,7 @@ public sealed partial class ContactRevealTests : IDisposable
         _openCache = AetheriaStores.Open(Catalog, catalogWritable: true);
         var ledger = new ProvenanceLedger();
         for (var lot = 1000; lot < 2000; lot++) ledger.Lots[lot] = new Lot { Origin = new Attributed(), Quality = 1 };
-        _items = new ItemManager(_openCache, ledger, new GameplaySettings
+        _items = new ItemManager(1u, _openCache, ledger, new GameplaySettings
         {
             DefaultEntitySettings = new EntitySettings(),
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },

tests/Aetheria.Shared.Tests/ContactTests.cs

@@ -116,7 +116,7 @@ public sealed class ContactTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 50; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack { Radius = 0 }, new GalaxyZone { Name = "Contacts", Owner = null }, null);
         var lab = new Lab { Items = items, Zone = zone };
         zone.Contacted.Subscribe(lab.Events.Add);

tests/Aetheria.Shared.Tests/DrawnPoseTests.cs

@@ -84,7 +84,7 @@ public sealed class DrawnPoseTests : IDisposable
         _caches.Add(cache);
         var ledger = new ProvenanceLedger();
         ledger.Lots[1] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, new GameplaySettings
+        var items = new ItemManager(1u, cache, ledger, new GameplaySettings
         {
             DefaultEntitySettings = new EntitySettings(),
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },

tests/Aetheria.Shared.Tests/FireAuthorityTests.cs

@@ -141,7 +141,7 @@ public sealed class FireAuthorityTests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         for (var i = 5; i <= 12; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));

tests/Aetheria.Shared.Tests/FireControlCut11Tests.cs

@@ -134,7 +134,7 @@ public sealed class FireControlCut11Tests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 16; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, TestSettings(schematicCellSize), _ => { });
+        var items = new ItemManager(1u, cache, ledger, TestSettings(schematicCellSize), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = zoneName, Owner = null }, null);
 
         EquippableItem Make(string name, int lot, float durability) => new EquippableItem

tests/Aetheria.Shared.Tests/FireControlCut123Tests.cs

@@ -160,7 +160,7 @@ public sealed class FireControlCut123Tests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 500; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 }; // F8: shared-item fixtures equip more items (bars) than earlier cuts needed
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Cut123", Owner = null }, null);
 
         EquippableItem Make(string name, int lot, float durability) => new EquippableItem

tests/Aetheria.Shared.Tests/FireControlCut124Tests.cs

@@ -188,7 +188,7 @@ public sealed partial class FireControlCut124Tests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 500; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Cut124", Owner = null }, null);
 
         EquippableItem Make(string name, int lot, float durability) => new EquippableItem

tests/Aetheria.Shared.Tests/FireControlCut12Tests.cs

@@ -192,7 +192,7 @@ public sealed class FireControlCut12Tests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 24; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         // Cut 6.1's own convention (FireControlCut6Tests.cs:62-63): every engagement shares one fixed
         // GalaxyZone name, so every Zone this fixture builds shares one CombatSeed and every statistical test
         // is replayable byte-for-byte across runs. A GUID-suffixed name here (this file's own earlier defect)

tests/Aetheria.Shared.Tests/FireControlCut4Tests.cs

@@ -124,7 +124,7 @@ public sealed class FireControlCut4Tests : IDisposable
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[5] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[9] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -218,7 +218,7 @@ public sealed class FireControlCut4Tests : IDisposable
         cache.FlushAsync().Wait();
 
         var ledger = new ProvenanceLedger { Lots = { [1] = new Lot { Origin = new Attributed(), Quality = 1 } } };
-        var items = new ItemManager(cache, ledger, TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, ledger, TestSettings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -258,7 +258,7 @@ public sealed class FireControlCut4Tests : IDisposable
         cache.FlushAsync().Wait();
 
         _splashLedger = new ProvenanceLedger();
-        var items = new ItemManager(cache, _splashLedger, settings, _ => { });
+        var items = new ItemManager(1u, cache, _splashLedger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
         return (items, zone);
     }

tests/Aetheria.Shared.Tests/FireControlCut5Tests.cs

@@ -140,7 +140,7 @@ public sealed class FireControlCut5Tests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         for (var i = 5; i <= 12; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -310,7 +310,7 @@ public sealed class FireControlCut5Tests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[5] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -406,7 +406,7 @@ public sealed class FireControlCut5Tests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[5] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -549,7 +549,7 @@ public sealed class FireControlCut5Tests : IDisposable
         ledger.Lots[1] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[2] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));

tests/Aetheria.Shared.Tests/FireControlCut6Tests.cs

@@ -126,7 +126,7 @@ public sealed class FireControlCut6Tests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[5] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));

tests/Aetheria.Shared.Tests/FireControlCut6cTests.cs

@@ -112,7 +112,7 @@ public sealed class FireControlCut6cTests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         for (var i = 5; i <= 12; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -254,7 +254,7 @@ public sealed class FireControlCut6cTests : IDisposable
         var random = new Random(1u);
         var settings = TestSettings();
         var log = new List<string>();
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, log.Add);
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, log.Add);
         var generator = new LoadoutGenerator(ref random, items, galaxy, null, makerFaction, .5f);
 
         var pack = generator.GenerateShipLoadout(candidate => candidate.Name == "Armed");

tests/Aetheria.Shared.Tests/FireControlCut6dTests.cs

@@ -119,7 +119,7 @@ public sealed class FireControlCut6dTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 20; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         // Durability high enough to survive thousands of direct 10-damage hits over a test's whole sample --

tests/Aetheria.Shared.Tests/FireControlCut7Tests.cs

@@ -104,7 +104,7 @@ public sealed class FireControlCut7Tests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 10; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -214,7 +214,7 @@ public sealed class FireControlCut7Tests : IDisposable
             QualityPriceModifier = new ExponentialLerp()
         };
         var log = new List<string>();
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, log.Add);
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, log.Add);
         var random = new Random(1u);
         var generator = new LoadoutGenerator(ref random, items, null, null, null, .5f);
         var pack = generator.GenerateShipLoadout(candidate => candidate == hull);

tests/Aetheria.Shared.Tests/FireControlCut8Tests.cs

@@ -112,7 +112,7 @@ public sealed class FireControlCut8Tests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[5] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -195,7 +195,7 @@ public sealed class FireControlCut8Tests : IDisposable
         ledger.Lots[2] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));

tests/Aetheria.Shared.Tests/FireControlCut9Tests.cs

@@ -107,7 +107,7 @@ public sealed class FireControlCut9Tests : IDisposable
         ledger.Lots[2] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = zoneName, Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -312,7 +312,7 @@ public sealed class FireControlCut9Tests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 5; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Cut9-Kernel", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));
@@ -543,7 +543,7 @@ public sealed class FireControlCut9Tests : IDisposable
         ledger.Lots[2] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 };
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Cut9-Lock", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("Hull"));

tests/Aetheria.Shared.Tests/FireControlPerWeaponTests.cs

@@ -193,7 +193,7 @@ public sealed class FireControlPerWeaponTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 100; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, TestSettings(minHit, targetLayerHeight), _ => { });
+        var items = new ItemManager(1u, cache, ledger, TestSettings(minHit, targetLayerHeight), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "PerWeapon", Owner = null }, null);
 
         EquippableItem Make(string name, int lot, float durability) => new EquippableItem

tests/Aetheria.Shared.Tests/FireControlTests.cs

@@ -88,7 +88,7 @@ public sealed class FireControlTests : IDisposable
         ledger.Lots[1] = new Lot { Origin = new Attributed(), Quality = 1 }; // hull
         for (var i = 0; i < hardpoints.Length; i++)
             ledger.Lots[2 + i] = new Lot { Origin = new Attributed(), Quality = 1 }; // guns
-        var items = new ItemManager(_openCache, ledger, TestSettings(shipLayerHeight), _ => { });
+        var items = new ItemManager(1u, _openCache, ledger, TestSettings(shipLayerHeight), _ => { });
         var planets = new PlanetSettings();
         var pack = new ZonePack();
         if (well) WellFixture.Dig(_openCache, pack, planets, 300f, 100f);

tests/Aetheria.Shared.Tests/FloatingBodyTests.cs

@@ -40,7 +40,7 @@ public sealed class FloatingBodyTests : IDisposable
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },
             QualityPriceModifier = new ExponentialLerp()
         };
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         return new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
     }
 
@@ -206,7 +206,7 @@ public sealed class FloatingBodyTests : IDisposable
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },
             QualityPriceModifier = new ExponentialLerp()
         };
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var planets = new PlanetSettings { HeightExaggeration = 10f }; // the tilt reads force / K, which K = 1 would hide
         var pack = new ZonePack { Radius = 1000 };
         WellFixture.Dig(cache, pack, planets, 300, 100);

tests/Aetheria.Shared.Tests/FlowFieldTests.cs

@@ -30,7 +30,7 @@ public sealed class FlowFieldTests : IDisposable
             TargetDetectionInfoThreshold = .1f, TargetGearInfoThreshold = .8f,
             FiringArc = 170, CommitHorizon = .5f, SchematicCellSize = 2f
         };
-        _items = new ItemManager(_cache, new ProvenanceLedger(), settings, _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), settings, _ => { });
     }
 
     public void Dispose()

tests/Aetheria.Shared.Tests/GravitySubtractTests.cs

@@ -29,7 +29,7 @@ public sealed class GravitySubtractTests : IDisposable
             TargetDetectionInfoThreshold = .1f, TargetGearInfoThreshold = .8f,
             FiringArc = 170, CommitHorizon = .5f, SchematicCellSize = 2f
         };
-        _items = new ItemManager(_cache, new ProvenanceLedger(), settings, _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), settings, _ => { });
     }
 
     public void Dispose()

tests/Aetheria.Shared.Tests/HeatResponseTests.cs

@@ -233,7 +233,7 @@ public sealed class HeatResponseTests : IDisposable
     public void HeldInsidePlateauTakesNoThermalWear()
     {
         using var cache = OpenCatalogWithThermalGear();
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var equipped = BuildEquippedAt(cache, items, 50f, out var ship);
         Assert.Equal(1f, equipped.ThermalPerformance, 5);
         Assert.Equal(0f, equipped.Wear, 5); // no thermal term (Performance == 1) and no deltaTemp (settled)
@@ -243,7 +243,7 @@ public sealed class HeatResponseTests : IDisposable
     public void HeldOutsidePlateauTakesThermalWear()
     {
         using var cache = OpenCatalogWithThermalGear();
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var equipped = BuildEquippedAt(cache, items, 10f, out var ship); // outside 40-60, inside 0-100
         Assert.True(equipped.ThermalPerformance < 1f);
         Assert.True(equipped.Wear > 0f);
@@ -255,7 +255,7 @@ public sealed class HeatResponseTests : IDisposable
     public void HeldOutsidePlateauWearReadsEffectiveQuality()
     {
         using var cache = OpenCatalogWithThermalGear();
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var thermal = cache.RefOf<ItemData>(cache.GetByName<GearData>("Thermal"));
         Lot Gear(float assembly, params float[] parts) => new Lot
         {
@@ -274,7 +274,7 @@ public sealed class HeatResponseTests : IDisposable
     public void AFastSwingAcrossThePlateauStillWears()
     {
         using var cache = OpenCatalogWithThermalGear();
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var equipped = BuildEquippedAt(cache, items, 10f, out var ship);
         // Jump straight into the plateau in one tick: ThermalPerformance ends at 1 (no thermal term), but the
         // swing itself (deltaTemp) still costs.

tests/Aetheria.Shared.Tests/IffAndCombatTests.cs

@@ -55,7 +55,7 @@ public sealed class IffAndCombatTests : IDisposable
         var ledger = new ProvenanceLedger();
         ledger.Lots[1] = new Lot { Origin = new Attributed(), Quality = 1 }; // hull
         ledger.Lots[2] = new Lot { Origin = new Attributed(), Quality = 1 }; // gun
-        var items = new ItemManager(_openCache, ledger, TestSettings(), _ => { });
+        var items = new ItemManager(1u, _openCache, ledger, TestSettings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         return (items, zone);
     }

tests/Aetheria.Shared.Tests/InputCapacitorTests.cs

@@ -87,7 +87,7 @@ public sealed class InputCapacitorTests : IDisposable
     private (Ship ship, ItemManager items, Reactor reactor) BuildShip(CultCache cache, float reactorCharge)
     {
         var ledger = new ProvenanceLedger();
-        var items = new ItemManager(cache, ledger, Settings(), _ => { });
+        var items = new ItemManager(1u, cache, ledger, Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());

tests/Aetheria.Shared.Tests/InspectionScannerCatalogTests.cs

@@ -105,7 +105,7 @@ public sealed class InspectionScannerCatalogTests
                 Origin = new Attributed(), Quality = 1f,
                 Roles = product.Roles.Select(r => new RoleFill { Role = r.Role, Quality = r.Mean }).ToList(),
             };
-            var items = new ItemManager(Cache, ledger, settings, _ => { });
+            var items = new ItemManager(1u, Cache, ledger, settings, _ => { });
             var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
             var ship = new Ship(items, zone, new EquippableItem { Data = Cache.RefOf<ItemData>(hull), Durability = hull.Durability, Lot = 1 }, settings.DefaultEntitySettings);
             Assert.True(ship.TryEquip(new EquippableItem { Data = Cache.RefOf<ItemData>(design), Durability = design.Durability, Lot = 2 }));

tests/Aetheria.Shared.Tests/ItemTitleTests.cs

@@ -42,7 +42,7 @@ public sealed class ItemTitleTests : IDisposable
         _cache.Commit(batch => batch.Upsert(typeof(FactionProductData), _clapBack, new CultRecordKey("array-lucent")));
         _spiceBlend = new FactionProductData { Name = "Finch Reserve", Design = _cache.RefOf<CraftedItemData>(_spice), Manufacturer = finch };
         _cache.Commit(batch => batch.Upsert(typeof(FactionProductData), _spiceBlend, new CultRecordKey("spice-finch")));
-        _items = new ItemManager(_cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
     }
 
     public void Dispose()

tests/Aetheria.Shared.Tests/LaunchSuppressorCatalogTests.cs

@@ -116,7 +116,7 @@ public sealed class LaunchSuppressorCatalogTests
                 Origin = new Attributed(), Quality = 1f,
                 Roles = new List<RoleFill> { new RoleFill { Role = "baffles", Quality = baffles }, new RoleFill { Role = "heat sink", Quality = sink } },
             };
-            var items = new ItemManager(Cache, ledger, settings, _ => { });
+            var items = new ItemManager(1u, Cache, ledger, settings, _ => { });
             var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
             Ship = new Ship(items, zone, new EquippableItem { Data = Cache.RefOf<ItemData>(hull), Durability = hull.Durability, Lot = 1 }, settings.DefaultEntitySettings);
 

tests/Aetheria.Shared.Tests/LayerTests.cs

@@ -58,7 +58,7 @@ public sealed class LayerTests : IDisposable
         _cache.FlushAsync().Wait();
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 3; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(_cache, ledger, Settings(), _ => { });
+        var items = new ItemManager(1u, _cache, ledger, Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack { Radius = 0 }, new GalaxyZone { Name = "Layers", Owner = null }, null);
         return (items, zone);
     }

tests/Aetheria.Shared.Tests/LoadoutTests.cs

@@ -90,7 +90,7 @@ public sealed class LoadoutTests : IDisposable
         Loadout hand;
         using (var cache = Open())
         {
-            var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
             hand = Armed(cache);
             var failures = new List<string>();
             var ship = Build(items, hand, failures);
@@ -108,7 +108,7 @@ public sealed class LoadoutTests : IDisposable
             Assert.Equal(hand.Slots.Select(Describe), loaded.Slots.Select(Describe));
             Assert.Equal(hand.WeaponGroups, loaded.WeaponGroups);
 
-            var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
             var failures = new List<string>();
             var ship = Build(items, loaded, failures);
             Assert.Empty(failures);
@@ -279,7 +279,7 @@ public sealed class LoadoutTests : IDisposable
 
         using (var cache = Open())
         {
-            var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
             var missing = HandBuilt(cache);
             missing.Slots[1].Design = new CultRecordRef<EquippableItemData>(new CultRecordKey("absent-design"));
             var failures = new List<string>();
@@ -304,7 +304,7 @@ public sealed class LoadoutTests : IDisposable
     public void FailedFitBuildsNothing()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var clash = HandBuilt(cache);
         clash.Slots[1].Position = HardpointCell;
         var failures = new List<string>();
@@ -319,7 +319,7 @@ public sealed class LoadoutTests : IDisposable
     public void ADesignWithNoProductBuildsUnbranded()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var failures = new List<string>();
         var ship = Build(items, WithDesign(HandBuilt(cache), 0, cache, "Orphan"), failures);
         Assert.Empty(failures);
@@ -335,7 +335,7 @@ public sealed class LoadoutTests : IDisposable
     public void ADesignWhoseOnlyProductIsUnavailableStillFails()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var failures = new List<string>();
         var soleProduct = SoleProduct(cache);
         Assert.Null(Loadouts.Materialize(items, null, HandBuilt(cache), design => design.Name == "Lamp" ? null : soleProduct(design), failures));
@@ -365,7 +365,7 @@ public sealed class LoadoutTests : IDisposable
             var gun = cache.GetAll<FactionProductData>().Single(p => p.Name == "Gun by Maker");
             var bay = cache.GetAll<FactionProductData>().Single(p => p.Name == "Bay by Maker");
 
-            var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
 
             EquippableItem Mint(FactionProductData product) => (EquippableItem) items.CreateInstance(product);
 
@@ -477,7 +477,7 @@ public sealed class LoadoutTests : IDisposable
         cache.FlushAsync().Wait();
 
         var random = new Random(1);
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var generator = new LoadoutGenerator(ref random, items, null, null, null, .5f);
         var pack = generator.GenerateShipLoadout(candidate => candidate.Name == "Twin");
         Assert.NotNull(pack);
@@ -504,7 +504,7 @@ public sealed class LoadoutTests : IDisposable
             new RarityTier { Name = "Common", Quality = .2f, Color = new float3(1, 1, 1) },
             new RarityTier { Name = "Rare", Quality = .5f, Color = new float3(1, 1, 1) }
         };
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         var commonLot = items.Lots.Add(new Lot
         {
@@ -561,7 +561,7 @@ public sealed class LoadoutTests : IDisposable
         using var cache = Open();
         var settings = AuthoredSettings.Load(RunStartTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
         var tiers = settings.Tiers;
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         var assembly = tiers[3].Quality;
         var sleeperLot = items.Lots.Add(new Lot
@@ -598,7 +598,7 @@ public sealed class LoadoutTests : IDisposable
         var settings = AuthoredSettings.Load(RunStartTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
         var tiers = settings.Tiers;
         Assert.True(tiers.Length > index, "premise: the shipped asset carries this tier");
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         string TierAt(float quality) => items.GetTier((CraftedItemInstance) items.CreateInstance(items.Lots.Add(
             new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = quality, Roles = new List<RoleFill>() }))).tier.Name;
@@ -614,7 +614,7 @@ public sealed class LoadoutTests : IDisposable
     {
         using var cache = Open();
         var settings = AuthoredSettings.Load(RunStartTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         // Two steps and a hair above the lowest threshold: the step width decides whether that counts as two or one.
         var quality = settings.Tiers[0].Quality + 2 * .0499f + .0001f;
@@ -640,7 +640,7 @@ public sealed class LoadoutTests : IDisposable
     public void QualityTermAppliesItsOwnExponent()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         var lotId = items.Lots.Add(new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = .5f, Roles = new List<RoleFill>() });
         var instance = (EquippableItem) items.CreateInstance(lotId);
@@ -658,7 +658,7 @@ public sealed class LoadoutTests : IDisposable
         using var cache = Open();
         var settings = RunSaveTests.TestSettings();
         settings.QualityPriceModifier = new ExponentialLerp { Minimum = 0, Maximum = 1, Exponent = 1 };
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         var lowLot = items.Lots.Add(new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = .2f, Roles = new List<RoleFill>() });
         var highLot = items.Lots.Add(new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = .8f, Roles = new List<RoleFill>() });
@@ -695,7 +695,7 @@ public sealed class LoadoutTests : IDisposable
         var durable = cache.Upsert(new GearData { Name = "Durable", Hardpoint = HardpointType.Sensors, Shape = new Shape(), Price = 10, Durability = 100 });
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var lowLot = items.Lots.Add(new Lot { Design = new CultRecordRef<ItemData>(durable.Key), Origin = new Attributed(), Quality = .1f, Roles = new List<RoleFill>() });
         var highLot = items.Lots.Add(new Lot { Design = new CultRecordRef<ItemData>(durable.Key), Origin = new Attributed(), Quality = .9f, Roles = new List<RoleFill>() });
         var sleeperLot = items.Lots.Add(new Lot
@@ -723,7 +723,7 @@ public sealed class LoadoutTests : IDisposable
     public void EquippedItemExponentsReadEffectiveQuality()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var maker = cache.RefOf(cache.GetByName<Faction>("Maker"));
         var hullData = cache.GetByName<HullData>("Skiff");
         var lampData = cache.GetByName<GearData>("Lamp");
@@ -785,7 +785,7 @@ public sealed class LoadoutTests : IDisposable
         cache.FlushAsync().Wait();
         var thermalData = cache.Get(thermalGear);
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var hullItem = (EquippableItem) items.CreateInstance(items.CreateLot(hullData, maker, .5f));
         var ship = new Ship(items, null, hullItem, new EntitySettings());
         var gearItem = (EquippableItem) items.CreateInstance(items.CreateLot(thermalData, maker, .5f));
@@ -831,7 +831,7 @@ public sealed class LoadoutTests : IDisposable
         cache.FlushAsync().Wait();
         var thermalData = cache.Get(thermalGear);
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var hullItem = (EquippableItem) items.CreateInstance(items.CreateLot(hullData, maker, .5f));
         var ship = new Ship(items, null, hullItem, new EntitySettings());
         var gearItem = (EquippableItem) items.CreateInstance(items.CreateLot(thermalData, maker, .5f));
@@ -867,7 +867,7 @@ public sealed class LoadoutTests : IDisposable
         cache.FlushAsync().Wait();
         var consumableData = cache.Get(consumableRef);
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var hullItem = (EquippableItem) items.CreateInstance(items.CreateLot(hullData, maker, .5f));
         var ship = new Ship(items, null, hullItem, new EntitySettings());
         var consumableItem = (ConsumableItem) items.CreateInstance(items.CreateLot(consumableData, maker, .5f));
@@ -902,7 +902,7 @@ public sealed class LoadoutTests : IDisposable
         cache.FlushAsync().Wait();
 
         var product = cache.GetAll<FactionProductData>().Single(p => p.Name == "Lensed by Maker");
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var lotId = items.CreateLot(product);
         var roleFill = items.Lots[lotId].Roles.Single(r => r.Role == "lens");
         Assert.Equal(.9f, roleFill.Quality, 3);
@@ -914,7 +914,7 @@ public sealed class LoadoutTests : IDisposable
     {
         using var cache = Open();
         var maker = cache.RefOf(cache.GetByName<Faction>("Maker"));
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var lamp = cache.GetByName<GearData>("Lamp");
         var lotId = items.Lots.Add(new Lot
         {
@@ -932,7 +932,7 @@ public sealed class LoadoutTests : IDisposable
     public void OutOfRangeWeaponGroupIndexBuildsNothing()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var stale = Armed(cache);
         stale.WeaponGroups = new[] { new[] { 0, 2 }, new[] { -1 } };
         var failures = new List<string>();
@@ -944,7 +944,7 @@ public sealed class LoadoutTests : IDisposable
     public void UnequippingAGroupedWeaponRemovesItFromItsGroups()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var ship = Build(items, Armed(cache), new List<string>());
         var item = Assert.Single(ship.WeaponGroups[0].items);
         Assert.NotNull(item.GetBehavior<Weapon>());
@@ -959,7 +959,7 @@ public sealed class LoadoutTests : IDisposable
     public void NonWeaponGroupIndexBuildsNothing()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var lampGrouped = WithDesign(Armed(cache), 0, cache, "Lamp");
         var failures = new List<string>();
         Assert.Null(Build(items, lampGrouped, failures));
@@ -970,7 +970,7 @@ public sealed class LoadoutTests : IDisposable
     public void MoreWeaponGroupsThanTheGameHasBuildsNothing()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var wide = Armed(cache);
         wide.WeaponGroups = wide.WeaponGroups.Append(new[] { 0 }).ToArray();
         var failures = new List<string>();
@@ -984,7 +984,7 @@ public sealed class LoadoutTests : IDisposable
     public void FewerWeaponGroupsArePaddedToTheGameCount()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var armed = Armed(cache);
         armed.WeaponGroups = new[] { new[] { 0 } };
         foreach (var groups in new[] { armed.WeaponGroups, null })
@@ -1008,7 +1008,7 @@ public sealed class LoadoutTests : IDisposable
     public void EntitiesDoNotShareDefaultEntitySettings()
     {
         using var cache = Open();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var maker = cache.RefOf(cache.GetByName<Faction>("Maker"));
         var hullData = cache.GetByName<HullData>("Skiff");
         var template = items.GameplaySettings.DefaultEntitySettings;

tests/Aetheria.Shared.Tests/LockWarningTests.cs

@@ -40,7 +40,7 @@ public sealed class LockWarningTests : IDisposable
         _openCache = AetheriaStores.Open(Catalog, catalogWritable: true);
         var ledger = new ProvenanceLedger();
         for (var lot = 1; lot < 12; lot++) ledger.Lots[lot] = new Lot { Origin = new Attributed(), Quality = 1 };
-        _items = new ItemManager(_openCache, ledger, new GameplaySettings
+        _items = new ItemManager(1u, _openCache, ledger, new GameplaySettings
         {
             DefaultEntitySettings = new EntitySettings(),
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },

tests/Aetheria.Shared.Tests/LootTests.cs

@@ -108,7 +108,7 @@ public sealed class LootTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 9000; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var planets = new PlanetSettings();
         var pack = new ZonePack { Radius = well ? 1000 : 0 };
         if (well) WellFixture.Dig(cache, pack, planets, 300, 100);

tests/Aetheria.Shared.Tests/MineTests.cs

@@ -118,7 +118,7 @@ public sealed class MineTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 500; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var planets = new PlanetSettings();
         var pack = new ZonePack { Radius = well ? 1000 : 0 };
         if (well) WellFixture.Dig(cache, pack, planets, 300, 100);

tests/Aetheria.Shared.Tests/MiningCut1Tests.cs

@@ -66,7 +66,7 @@ public sealed class MiningCut1Tests : IDisposable
         // OrbitData and BodyData (AsteroidBeltData) are run types (AetheriaStores.RunTypes), not catalog types:
         // they need a run store to write into.
         var cache = AetheriaStores.Open(catalog, run, catalogWritable: true);
-        var items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { });
         var settings = Settings();
 
         var sunOrbitKey = cache.Upsert(new OrbitData()).Key;

tests/Aetheria.Shared.Tests/MiningCut2Tests.cs

@@ -69,7 +69,7 @@ public sealed class MiningCut2Tests : IDisposable
         var dir = Path.Combine(_root, $"cat{_fixtureCount++}");
         Directory.CreateDirectory(dir);
         var cache = AetheriaStores.Open(Path.Combine(dir, "Aetheria.cc"), Path.Combine(dir, "run.cc"), catalogWritable: true);
-        var items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { });
         var settings = Settings();
 
         var rootOrbit = new OrbitData { Distance = 3000f, Phase = 0.05f };

tests/Aetheria.Shared.Tests/MiningCut3Tests.cs

@@ -131,7 +131,7 @@ public sealed partial class MiningCut3Tests : IDisposable
         });
         cache.Upsert(dimEye);
         foreach (var kind in kinds ?? new FieldKindData[0]) cache.Upsert(kind);
-        var items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { });
 
         var sunOrbit = cache.Upsert(new OrbitData { FixedPosition = sunAt }).Key;
         var sun = cache.Upsert(new SunData { Orbit = new CultRecordRef<OrbitData>(sunOrbit), Mass = 1f }).Key;
@@ -679,7 +679,7 @@ public sealed partial class MiningCut3Tests : IDisposable
         // Kept: a new, overwhelmingly weighted kind now wins the pick for this belt, yet loading it again leaves it.
         reopened.Upsert(Kind("Overwhelming", 9f, 1e6f));
         Assert.False(FieldKinds.Assign(beltKey, reopened).Key.Equals(assigned));
-        var items = new ItemManager(reopened, new ProvenanceLedger(), GameSettings(), _ => { });
+        var items = new ItemManager(1u, reopened, new ProvenanceLedger(), GameSettings(), _ => { });
         var reloaded = new Zone(items, PlanetSettings(), s.Pack, new GalaxyZone { Name = "MiningCut3Reload", Owner = null }, null);
         Assert.True(((AsteroidBeltData) reloaded.Planets[beltKey]).Kind.Key.Equals(assigned));
     }
@@ -817,7 +817,7 @@ public sealed partial class MiningCut3Tests : IDisposable
                     cache, new PlayerSettings(), new DirectoryInfo(dir), _ => { }, null, seed);
             }
             catch (Exception) { continue; } // Galaxy's own seed-dependent flakiness (RestoredHullsTests)
-            var items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { });
             foreach (var zone in galaxy.Zones.Take(4))
             {
                 var pack = ZoneGenerator.GenerateZone(items, RestoredHullsTests.TutorialZoneSettings(), RestoredHullsTests.AuthoredPlanetSettings(), galaxy, zone, isTutorial: zone == galaxy.Entrance);
@@ -924,7 +924,7 @@ public sealed partial class MiningCut3Tests : IDisposable
         _caches.Add(clean);
         Assert.False(clean.IsDirty);
         Assert.False(((AsteroidBeltData) clean.Get(beltKey)).Kind.IsSet());
-        var zone = new Zone(new ItemManager(clean, new ProvenanceLedger(), GameSettings(), _ => { }), PlanetSettings(), s.Pack,
+        var zone = new Zone(new ItemManager(1u, clean, new ProvenanceLedger(), GameSettings(), _ => { }), PlanetSettings(), s.Pack,
             new GalaxyZone { Name = "Clean", Owner = null }, null);
         var assigned = ((AsteroidBeltData) zone.Planets[beltKey]).Kind;
         Assert.True(assigned.IsSet());
@@ -1026,7 +1026,7 @@ public sealed partial class MiningCut3Tests : IDisposable
             PingEnergy = Constant(0f), PingRange = Constant(300f), PingCooldown = Constant(4f)
         });
         cache.Upsert(eye);
-        var items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { });
         var s = new Scene
         {
             Cache = cache, Items = items, Hull = hull, Eye = eye,

tests/Aetheria.Shared.Tests/MunitionPartsTests.cs

@@ -257,7 +257,7 @@ public sealed class MunitionPartsTests : IDisposable
         var ledger = new ProvenanceLedger();
         ledger.Lots[1] = new Lot { Origin = new Attributed(), Quality = .5f };
         ledger.Lots[2] = new Lot { Origin = new Attributed(), Quality = .5f, Roles = new List<RoleFill> { new RoleFill { Role = "thruster", Quality = thrusterQuality } } };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
         ship = new Ship(items, zone, new EquippableItem { Data = cache.RefOf<ItemData>(hull), Durability = hull.Durability, Lot = 1 }, settings.DefaultEntitySettings);
         foreach (var (name, x, y) in ShipGear)

tests/Aetheria.Shared.Tests/OrbitsFromFieldTests.cs

@@ -255,7 +255,7 @@ public sealed class OrbitsFromFieldTests : IDisposable
             var galaxy = new Galaxy(tutorial, authored.Read<SectorBackgroundSettings>("TutorialBackgroundSettings"),
                 cache, new PlayerSettings(),
                 Directory.CreateDirectory(Path.Combine(dir, "Narrative")), _ => { }, null, seed);
-            var items = new ItemManager(cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
             var pack = ZoneGenerator.GenerateZone(items, authored.Read<ZoneGenerationSettings>("ZoneSettings"), authored.Read<PlanetSettings>("PlanetSettings"), galaxy, galaxy.Entrance,
                 galaxy.IsPrelude, false);
             var zone = new Zone(items, authored.Read<PlanetSettings>("PlanetSettings"), pack, galaxy.Entrance, galaxy);

tests/Aetheria.Shared.Tests/PaintModeTests.cs

@@ -60,7 +60,7 @@ public sealed class PaintModeTests : IDisposable
         _openCache = AetheriaStores.Open(Catalog, catalogWritable: true);
         var ledger = new ProvenanceLedger();
         for (var lot = 1; lot < 12; lot++) ledger.Lots[lot] = new Lot { Origin = new Attributed(), Quality = 1 };
-        _items = new ItemManager(_openCache, ledger, new GameplaySettings
+        _items = new ItemManager(1u, _openCache, ledger, new GameplaySettings
         {
             DefaultEntitySettings = new EntitySettings(),
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },

tests/Aetheria.Shared.Tests/PickupTests.cs

@@ -106,7 +106,7 @@ public sealed class PickupTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 9000; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var pack = new ZonePack { Radius = 0 };
         var curves = new PlanetSettings();
         if (wells)

tests/Aetheria.Shared.Tests/PopulatedRadiusTests.cs

@@ -61,7 +61,7 @@ public sealed class PopulatedRadiusTests : IDisposable
         var cache = AetheriaStores.Open(Path.Combine(dir, "Aetheria.cc"), Path.Combine(dir, "run.cc"), catalogWritable: true);
         _caches.Add(cache);
         cache.Upsert(new VerseGrammar { Revision = 1 });
-        var items = new ItemManager(cache, new ProvenanceLedger(), new GameplaySettings
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), new GameplaySettings
         {
             DefaultEntitySettings = new EntitySettings(),
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },

tests/Aetheria.Shared.Tests/PotentialOwnerTests.cs

@@ -31,7 +31,7 @@ public sealed class PotentialOwnerTests : IDisposable
             Tiers = new[] { new RarityTier { Name = "Common", Quality = .5f, Color = new float3(1, 1, 1) } },
             QualityPriceModifier = new ExponentialLerp()
         };
-        _items = new ItemManager(_cache, new ProvenanceLedger(), settings, _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), settings, _ => { });
     }
 
     public void Dispose()

tests/Aetheria.Shared.Tests/PowerBusTests.cs

@@ -87,7 +87,7 @@ public sealed class PowerBusTests : IDisposable
         CultCache cache, float reactorCharge, float startingCapacitorCharge, bool reactorFirst)
     {
         var ledger = new ProvenanceLedger();
-        var items = new ItemManager(cache, ledger, Settings(), _ => { });
+        var items = new ItemManager(1u, cache, ledger, Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());

tests/Aetheria.Shared.Tests/PowerCurveTests.cs

@@ -93,7 +93,7 @@ public sealed class PowerCurveTests : IDisposable
 
     private Ship BuildShip(CultCache cache, float reactorCharge)
     {
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());
@@ -401,7 +401,7 @@ public sealed class PowerCurveTests : IDisposable
         });
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hullItem = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hullItem, new EntitySettings());

tests/Aetheria.Shared.Tests/PowerTierTests.cs

@@ -63,7 +63,7 @@ public sealed class PowerTierTests : IDisposable
     private (Ship ship, ItemManager items, Reactor reactor) BuildShip(CultCache cache, float reactorCharge)
     {
         var ledger = new ProvenanceLedger();
-        var items = new ItemManager(cache, ledger, Settings(), _ => { });
+        var items = new ItemManager(1u, cache, ledger, Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());

tests/Aetheria.Shared.Tests/ProductBinTests.cs

@@ -26,7 +26,7 @@ public sealed class ProductBinTests : IDisposable
             Roles = { new ItemRole { Name = "lens" } }
         });
         _lens = new CultRecordRef<CraftedItemData>(gear.Key);
-        _items = new ItemManager(_cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _log.Add) { Random = new CultMath.Random(7u) };
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _log.Add) { Random = new CultMath.Random(7u) };
     }
 
     public void Dispose()

tests/Aetheria.Shared.Tests/ProductChoiceTests.cs

@@ -133,7 +133,7 @@ public sealed class ProductChoiceTests : IDisposable
         return new Rig
         {
             Cache = cache, OutA = outA, OutZ = outZ, OutBoth = cache.GetByName<Faction>("OutBoth"), OutEven = cache.GetByName<Faction>("OutEven"), OutNone = cache.GetByName<Faction>("OutNone"),
-            Items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { }),
+            Items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { }),
             Galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { })
         };
     }
@@ -325,7 +325,7 @@ public sealed class ProductChoiceTests : IDisposable
         int AlphaDraws(Rig rig)
         {
             var log = new List<string>();
-            var items = new ItemManager(rig.Cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), log.Add);
+            var items = new ItemManager(1u, rig.Cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), log.Add);
             var lamp = rig.Cache.GetByName<GearData>("Lamp");
             var alpha = Enumerable.Range(1, 1000).Count(i =>
             {

tests/Aetheria.Shared.Tests/RangeFalloffTests.cs

@@ -57,7 +57,7 @@ public sealed class RangeFalloffTests
     public void AnUnequippedWeaponsUnauthoredStatsEvaluate(string design, bool unauthored)
     {
         using var cache = RestoredHullsTests.OpenCatalog();
-        var items = new ItemManager(cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), RunSaveTests.TestSettings(), _ => { });
         var data = cache.GetAll<WeaponItemData>().Single(x => x.Name == design);
         var lot = items.Lots.Add(new Lot { Design = cache.RefOf<ItemData>(data), Origin = new Attributed(), Quality = .5f, Roles = new System.Collections.Generic.List<RoleFill>() });
         var item = (EquippableItem) items.CreateInstance(lot);

tests/Aetheria.Shared.Tests/RestoredHullsTests.cs

@@ -147,7 +147,7 @@ public sealed class RestoredHullsTests
 
     private static (uint seed, string zoneName) ScanForNoLagrangeCandidateZone(CultCache cache)
     {
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         for (var seed = 1u; seed <= 64u; seed++)
         {
             var galaxy = new Galaxy(TutorialGalaxySettings(), TutorialBackgroundSettings(), cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed);
@@ -227,7 +227,7 @@ public sealed class RestoredHullsTests
         var settings = Settings();
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= hull.Hardpoints.Count + 1; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = .5f };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
         var hullItem = new EquippableItem { Data = cache.RefOf<ItemData>(hull), Durability = hull.Durability, Lot = 1 };
         var ship = new Ship(items, zone, hullItem, settings.DefaultEntitySettings);
@@ -282,7 +282,7 @@ public sealed class RestoredHullsTests
         var settings = Settings();
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= hull.Hardpoints.Count + 1; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = .5f };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test", Owner = null }, null);
         var hullItem = new EquippableItem { Data = cache.RefOf<ItemData>(hull), Durability = hull.Durability, Lot = 1 };
         var ship = new Ship(items, zone, hullItem, settings.DefaultEntitySettings);
@@ -372,7 +372,7 @@ public sealed class RestoredHullsTests
                 using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
                 var galaxy = new Galaxy(tutorialSettings, background, cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed);
 
-                var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+                var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
                 var pack = ZoneGenerator.GenerateZone(items, zoneSettings, AuthoredPlanetSettings(), galaxy, galaxy.Entrance, isTutorial: true);
 
                 var dockedStation = pack.Entities.OfType<OrbitalEntityPack>()
@@ -412,7 +412,7 @@ public sealed class RestoredHullsTests
                 using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
                 var galaxy = new Galaxy(tutorialSettings, background, cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed);
 
-                var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+                var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
                 var pack = ZoneGenerator.GenerateZone(items, zoneSettings, AuthoredPlanetSettings(), galaxy, galaxy.Entrance, isTutorial: true);
 
                 var planetOrbits = pack.Planets.Select(p => cache.Get(cache.Get(p).Orbit)).Where(o => o.Parent.IsSet()).ToArray();
@@ -449,7 +449,7 @@ public sealed class RestoredHullsTests
         {
             using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
             var galaxy = new Galaxy(TutorialGalaxySettings(), TutorialBackgroundSettings(), cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed: 1u);
-            var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
             var zoneSettings = TutorialZoneSettings();
             zoneSettings.RosetteProbability = 0;
@@ -484,7 +484,7 @@ public sealed class RestoredHullsTests
         {
             using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
             var galaxy = new Galaxy(TutorialGalaxySettings(), TutorialBackgroundSettings(), cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed: 1u);
-            var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
             var zoneSettings = TutorialZoneSettings();
             zoneSettings.RosetteProbability = 1;
@@ -535,7 +535,7 @@ public sealed class RestoredHullsTests
                 using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
                 var galaxy = new Galaxy(tutorialSettings, background, cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed);
 
-                var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+                var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
                 var pack = ZoneGenerator.GenerateZone(items, zoneSettings, AuthoredPlanetSettings(), galaxy, galaxy.Entrance, isTutorial: true);
 
                 var dockedStation = pack.Entities.OfType<OrbitalEntityPack>()
@@ -596,7 +596,7 @@ public sealed class RestoredHullsTests
         using var cache = OpenCatalog();
         var hull = cache.GetByName<HullData>("Longinus");
         var settings = Settings();
-        var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
         // ItemManager.Random defaults to a DateTime.Now-seeded instance; without pinning it here, the item
         // qualities LoadoutGenerator/EntitySerializer roll through it (not through the `random` below, which
         // only drives which designs get picked) would make this test's own measured speed non-deterministic.
@@ -645,7 +645,7 @@ public sealed class RestoredHullsTests
 
         for (uint seed = 1; seed <= 10; seed++)
         {
-            var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
             var random = new Random(seed);
             var generator = new LoadoutGenerator(ref random, items, null, null, null, .5f);
             var pack = generator.GenerateShipLoadout(candidate => candidate == hull);
@@ -729,7 +729,7 @@ public sealed class RestoredHullsTests
             var (seed, zoneName) = NoLagrangeCandidateZone();
             var galaxy = BuildGalaxyWithForcedEntrance(cache, seed, zoneName);
 
-            var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
             var pack = ZoneGenerator.GenerateZone(items, TutorialZoneSettings(), AuthoredPlanetSettings(), galaxy, galaxy.Entrance, isTutorial: true);
 
             var station = pack.Entities.OfType<OrbitalEntityPack>()
@@ -780,7 +780,7 @@ public sealed class RestoredHullsTests
         {
             using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
             var galaxy = new Galaxy(TutorialGalaxySettings(), TutorialBackgroundSettings(), cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed: 1u);
-            var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
             int StationCount(GalaxyZone zone, bool isTutorial) =>
                 ZoneGenerator.GenerateZone(items, TutorialZoneSettings(), AuthoredPlanetSettings(), galaxy, zone, isTutorial)
@@ -820,7 +820,7 @@ public sealed class RestoredHullsTests
         {
             using var cache = OpenReadOnlyRealCatalogWithScratchRun(gameData, scratchRun);
             var galaxy = new Galaxy(TutorialGalaxySettings(), TutorialBackgroundSettings(), cache, new PlayerSettings(), new DirectoryInfo(Path.GetTempPath()), _ => { }, null, seed: 1u);
-            var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
             var pack = ZoneGenerator.GenerateZone(items, TutorialZoneSettings(), AuthoredPlanetSettings(), galaxy, galaxy.Entrance, isTutorial: true);
             var stationCount = pack.Entities.OfType<OrbitalEntityPack>().Count(e => (cache.Get(e.Hull.Data) as HullData)?.HullType == HullType.Station);
@@ -904,7 +904,7 @@ public sealed class RestoredHullsTests
             var zone = galaxy.Zones.Single(z => z.Name == zoneName);
             Assert.NotSame(galaxy.Entrance, zone);
 
-            var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
             var pack = ZoneGenerator.GenerateZone(items, TutorialZoneSettings(), AuthoredPlanetSettings(), galaxy, zone, isTutorial: true);
 
             // Confirms this fixture still has no genuine (non-rosette) Lagrange candidate -- a regression here

tests/Aetheria.Shared.Tests/RoleAuthoringTests.cs

@@ -102,7 +102,7 @@ public sealed class RoleAuthoringTests : IDisposable
         });
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var cheapLot = items.CreateLot(cache.GetAll<FactionProductData>().Single(p => p.Name == "Lensed Economy"));
         var premiumLot = items.CreateLot(cache.GetAll<FactionProductData>().Single(p => p.Name == "Lensed Premium"));
         var cheapInstance = (EquippableItem) items.CreateInstance(cheapLot);

tests/Aetheria.Shared.Tests/RunGoalTests.cs

@@ -30,7 +30,7 @@ public sealed partial class RunStartTests
     private static Faction Zhestokost(Galaxy galaxy) => galaxy.Factions.Single(faction => faction.Name == "Zhestokost");
 
     private ItemManager LoggingItems(List<string> log) =>
-        new ItemManager(_cache, new ProvenanceLedger(), AuthoredSettings.Load(FindRepoRoot()).Read<GameplaySettings>("GameplaySettings"), log.Add);
+        new ItemManager(1u, _cache, new ProvenanceLedger(), AuthoredSettings.Load(FindRepoRoot()).Read<GameplaySettings>("GameplaySettings"), log.Add);
 
     private static string HullName(ItemManager items, EntityPack pack) => items.GetData(pack.Hull).Name;
 

tests/Aetheria.Shared.Tests/RunSaveTests.cs

@@ -102,7 +102,7 @@ public sealed class RunSaveTests : IDisposable
             var galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { });
             var ledger = new ProvenanceLedger();
             for (var i = 1; i <= 2; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-            var items = new ItemManager(cache, ledger, TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, ledger, TestSettings(), _ => { });
             var zone = new Zone(items, new PlanetSettings(), new ZonePack(), galaxy.Zones[0], galaxy);
             galaxy.Zones[0].Contents = zone;
             Ship Make(string hull, int lot) => new Ship(items, zone, new EquippableItem
@@ -135,7 +135,7 @@ public sealed class RunSaveTests : IDisposable
         using (var cache = Open())
         {
             var galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { });
-            var itemManager = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            var itemManager = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             galaxy.Zones[0].Contents = new Zone(itemManager, new PlanetSettings(), new ZonePack(), galaxy.Zones[0], galaxy);
             var (game, zones) = RunSave.Capture(cache, galaxy, galaxy.Zones[0].Contents, null, new SavedActionBarBinding[0], 0);
             RunSave.Commit(cache, game, zones, RunSave.Lots(cache));
@@ -160,7 +160,7 @@ public sealed class RunSaveTests : IDisposable
         using (var cache = Open())
         {
             var galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { });
-            var itemManager = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            var itemManager = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             galaxy.Zones[0].Contents = new Zone(itemManager, new PlanetSettings(), new ZonePack(), galaxy.Zones[0], galaxy);
             var (game, zones) = RunSave.Capture(cache, galaxy, galaxy.Zones[0].Contents, null, new SavedActionBarBinding[0], 4242);
             RunSave.Commit(cache, game, zones, RunSave.Lots(cache));
@@ -186,7 +186,7 @@ public sealed class RunSaveTests : IDisposable
         {
             var galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { });
             Assert.Equal(0xC0FFEE42u, galaxy.Seed);
-            var itemManager = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            var itemManager = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             galaxy.Zones[0].Contents = new Zone(itemManager, new PlanetSettings(), new ZonePack(), galaxy.Zones[0], galaxy);
             // The zone's drop dice are its name's seed mixed with the run's.
             Assert.Equal("Zone 0".StableHash() ^ SimulationDice.Mix(0xC0FFEE42u), galaxy.Zones[0].Contents.DropSeed);
@@ -207,7 +207,7 @@ public sealed class RunSaveTests : IDisposable
             Assert.Equal(0u, cache.GetGlobal<SavedGame>().Seed);
             var galaxy = new Galaxy(cache, cache.GetGlobal<SavedGame>(), _ => { });
             Assert.Equal(0u, galaxy.Seed);
-            var itemManager = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            var itemManager = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             var zone = new Zone(itemManager, new PlanetSettings(), new ZonePack(), galaxy.Zones[0], galaxy);
             Assert.Equal("Zone 0".StableHash(), zone.CombatSeed);
             Assert.Equal(zone.CombatSeed, zone.DropSeed);
@@ -408,7 +408,7 @@ public sealed class RunSaveTests : IDisposable
         using (var cache = Open())
         {
             var random = new Random(7);
-            var items = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             var generator = new LoadoutGenerator(ref random, items, null, null, null, .5f);
             pack = generator.GenerateShipLoadout(candidate => candidate.Name == "Runabout");
             Assert.NotNull(pack);

tests/Aetheria.Shared.Tests/RunStartTests.cs

@@ -53,7 +53,7 @@ public sealed partial class RunStartTests : IDisposable
         _galaxy = new Galaxy(tutorial, authored.Read<SectorBackgroundSettings>("TutorialBackgroundSettings"),
             _cache, new PlayerSettings(),
             Directory.CreateDirectory(Path.Combine(_root, "Narrative")), _ => { }, null, GalaxySeed);
-        _items = new ItemManager(_cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
         _protagonist = _galaxy.ResolveFaction(tutorial.ProtagonistFaction);
 
         // GameSettings.StartingHullName is a plain field of the Unity settings object, not a ServerShared subtree

tests/Aetheria.Shared.Tests/ShieldReserveTests.cs

@@ -83,7 +83,7 @@ public sealed class ShieldReserveTests : IDisposable
     private (Ship ship, Shield shield) BuildShipWithShield(CultCache cache, float reactorGeneration)
     {
         var ledger = new ProvenanceLedger();
-        var items = new ItemManager(cache, ledger, Settings(), _ => { });
+        var items = new ItemManager(1u, cache, ledger, Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hull = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hull, new EntitySettings());

tests/Aetheria.Shared.Tests/SignatureTests.cs

@@ -132,7 +132,7 @@ public sealed class SignatureTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 100; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, Settings(visibilityDecay), _ => { });
+        var items = new ItemManager(1u, cache, ledger, Settings(visibilityDecay), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Signatures", Owner = null }, null);
         var lot = 1;
         EquippableItem Make(string name) => new EquippableItem

tests/Aetheria.Shared.Tests/StatResolverTests.cs

@@ -93,7 +93,7 @@ public sealed class StatResolverTests : IDisposable
         cache.Upsert(new GearData { Name = "AutoGun", Hardpoint = HardpointType.Sensors, Shape = new Shape(), Durability = 10, Behaviors = { new AutoWeaponData { Damage = autoDamage } } });
         cache.Upsert(new GearData { Name = "ChargedGun", Hardpoint = HardpointType.Sensors, Shape = new Shape(), Durability = 10, Behaviors = { new ChargedWeaponData { Damage = chargedDamage } } });
         cache.FlushAsync().Wait();
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var ship = BuildActivatedShip(cache, items, withBooster: true);
         ship.Deactivate(); // TryEquip refuses while deployed
         Assert.True(ship.TryEquip(Mint(cache, items, cache.GetByName<GearData>("AutoGun")), FirstGunCell));
@@ -137,7 +137,7 @@ public sealed class StatResolverTests : IDisposable
     {
         var capacity = new PerformanceStat { Min = 1, Max = 1 };
         using var cache = OpenCatalog(new CapacitorData { Capacity = capacity });
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var shipA = BuildActivatedShip(cache, items, withBooster: false);
         var shipB = BuildActivatedShip(cache, items, withBooster: false);
 
@@ -159,7 +159,7 @@ public sealed class StatResolverTests : IDisposable
             Type = StatModifierType.Constant
         };
         using var cache = OpenCatalog(new CapacitorData { Capacity = capacity }, modifier);
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
         var boosted = BuildActivatedShip(cache, items, withBooster: true);
         var plain = BuildActivatedShip(cache, items, withBooster: false);
@@ -198,7 +198,7 @@ public sealed class StatResolverTests : IDisposable
             Type = StatModifierType.Constant
         };
         using var cache = OpenCatalog(new CapacitorData { Capacity = capacity }, modifier);
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
         var ship = BuildActivatedShip(cache, items, withBooster: true);
         var boosterEquipped = ship.Equipment.Single(e => e.Data.Name == "Booster");
@@ -234,7 +234,7 @@ public sealed class StatResolverTests : IDisposable
     {
         var capacity = new PerformanceStat { Min = 1, Max = 1 };
         using var cache = OpenCatalog(new CapacitorData { Capacity = capacity });
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
 
         WeakReference EquipEvaluateAndDrop()
         {
@@ -281,7 +281,7 @@ public sealed class StatResolverTests : IDisposable
         });
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var hullItem = Mint(cache, items, cache.GetByName<HullData>("Skiff"));
         var ship = new Ship(items, zone, hullItem, new EntitySettings());
@@ -387,7 +387,7 @@ public sealed class StatResolverTests : IDisposable
     {
         var capacity = new PerformanceStat { Min = 1, Max = 1 };
         using var cache = OpenCatalog(new CapacitorData { Capacity = capacity });
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var ship = BuildActivatedShip(cache, items, withBooster: false);
         var resolver = ship.Resolver;
 
@@ -424,7 +424,7 @@ public sealed class StatResolverTests : IDisposable
         cache.FlushAsync().Wait();
         var boosterData = cache.Get(boosterRef);
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var ship = BuildActivatedShip(cache, items, withBooster: false);
         var resolver = ship.Resolver;
 
@@ -498,7 +498,7 @@ public sealed class StatResolverTests : IDisposable
             cache.Upsert(new ConsumableItemData { Name = "Stim", Duration = 1f, Shape = new Shape(), Behaviors = { ThrustModifier(consumable.Value.Type, consumable.Value.Value) } });
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var ship = new Ship(items, zone, Mint(cache, items, cache.GetByName<HullData>("Skiff")), new EntitySettings());
         Assert.True(ship.TryEquip(Mint(cache, items, cache.GetByName<GearData>("Engine")), cells[0]));

tests/Aetheria.Shared.Tests/StationPlacementTests.cs

@@ -56,7 +56,7 @@ public sealed class StationPlacementTests : IDisposable
                 authored.Read<SectorBackgroundSettings>("TutorialBackgroundSettings"),
                 cache, new PlayerSettings(),
                 Directory.CreateDirectory(Path.Combine(dir, "Narrative")), _ => { }, null, seed);
-            var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), settings, _ => { });
             stock?.Invoke(items);
             foreach (var galaxyZone in entranceOnly ? new[] { galaxy.Entrance } : galaxy.Zones.Take(zonesPerSeed))
             {

tests/Aetheria.Shared.Tests/StationServicesTests.cs

@@ -37,7 +37,7 @@ public sealed class StationServicesTests : IDisposable
         _cache.FlushAsync().Wait();
 
         var settings = AuthoredSettings.Load(RestoredHullsTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
-        _items = new ItemManager(_cache, new ProvenanceLedger(), settings, _ => { });
+        _items = new ItemManager(1u, _cache, new ProvenanceLedger(), settings, _ => { });
         _zone = new Zone(_items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
     }
 

tests/Aetheria.Shared.Tests/SunsNeverGreenTests.cs

@@ -185,7 +185,7 @@ public sealed class SunsNeverGreenTests : IDisposable
             var galaxy = new Galaxy(tutorial, authored.Read<SectorBackgroundSettings>("TutorialBackgroundSettings"),
                 cache, new PlayerSettings(),
                 Directory.CreateDirectory(Path.Combine(dir, "Narrative")), _ => { }, null, seed);
-            var items = new ItemManager(cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), authored.Read<GameplaySettings>("GameplaySettings"), _ => { });
             var zoneSettings = authored.Read<ZoneGenerationSettings>("ZoneSettings");
             adjust(zoneSettings);
             foreach (var zone in galaxy.Zones)

tests/Aetheria.Shared.Tests/TargetingSystemTests.cs

@@ -104,7 +104,7 @@ public sealed class TargetingSystemTests : IDisposable
         ledger.Lots[3] = new Lot { Origin = new Attributed(), Quality = 1 }; // wide
         ledger.Lots[4] = new Lot { Origin = new Attributed(), Quality = 1 }; // narrow
         ledger.Lots[5] = new Lot { Origin = new Attributed(), Quality = 1 }; // targeting (unused unless authored above)
-        var items = new ItemManager(_openCache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, _openCache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
 
         var hullRef = items.ItemData.RefOf<ItemData>(items.ItemData.GetByName<HullData>("TestHull"));
@@ -368,7 +368,7 @@ public sealed class TargetingSystemTests : IDisposable
 
         Ship BuildShip(float reactorCharge, out ItemManager items)
         {
-            items = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            items = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
             var hullData = cache.GetByName<HullData>("Skiff");
             var hull = Mint(hullData);
@@ -439,7 +439,7 @@ public sealed class TargetingSystemTests : IDisposable
         for (var seed = 1; seed <= 10; seed++)
         {
             var random = new Random((uint) seed);
-            var items = new ItemManager(cache, new ProvenanceLedger(), TestSettings(), _ => { });
+            var items = new ItemManager(1u, cache, new ProvenanceLedger(), TestSettings(), _ => { });
             var generator = new LoadoutGenerator(ref random, items, null, null, null, .5f);
             var pack = generator.GenerateShipLoadout(candidate => candidate.Name == "Armed");
             Assert.NotNull(pack);

tests/Aetheria.Shared.Tests/ThrottleLockTests.cs

@@ -84,7 +84,7 @@ public sealed class ThrottleLockTests : IDisposable
         cache.Upsert(lockData);
         cache.FlushAsync().Wait();
 
-        var items = new ItemManager(cache, new ProvenanceLedger(), Settings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), Settings(), _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack(), new GalaxyZone { Name = "Test Zone", Owner = null }, null);
         var ship = new Ship(items, zone, Mint(cache, items, cache.GetByName<HullData>("Skiff")), new EntitySettings());
         var gear = cache.GetByName<GearData>("Thruster");

tests/Aetheria.Shared.Tests/VapourCloudTests.cs

@@ -104,7 +104,7 @@ public sealed class VapourCloudTests : IDisposable
 
         var ledger = new ProvenanceLedger();
         for (var i = 1; i <= 50; i++) ledger.Lots[i] = new Lot { Origin = new Attributed(), Quality = 1 };
-        var items = new ItemManager(cache, ledger, settings, _ => { });
+        var items = new ItemManager(1u, cache, ledger, settings, _ => { });
         var zone = new Zone(items, new PlanetSettings(), new ZonePack { Radius = 5000 }, new GalaxyZone { Name = "Vapour", Owner = null }, null);
         var lab = new Lab { Items = items, Zone = zone };
 

tests/Aetheria.Shared.Tests/ZonePlacedAtBuildTests.cs

@@ -71,7 +71,7 @@ public sealed class ZonePlacedAtBuildTests : IDisposable
         foreach (var cell in shape.AllCoordinates) shape[cell] = true;
         var hull = new HullData { Name = "Skiff", HullType = HullType.Ship, Shape = shape, Durability = 10, Mass = 1000 };
         cache.Upsert(hull);
-        var items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { });
+        var items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { });
 
         var rootOrbit = cache.Upsert(new OrbitData { FixedPosition = RootAt }).Key;
         var planetOrbit = cache.Upsert(new OrbitData

tests/Aetheria.Shared.Tests/ZoneWorlds.cs

@@ -80,6 +80,6 @@ internal sealed class ZoneWorlds : IDisposable
         Directory.CreateDirectory(dir);
         var cache = AetheriaStores.Open(Path.Combine(dir, "Aetheria.cc"), Path.Combine(dir, "run.cc"), catalogWritable: true);
         Caches.Add(cache);
-        return new World { Cache = cache, Items = new ItemManager(cache, new ProvenanceLedger(), GameSettings(), _ => { }) };
+        return new World { Cache = cache, Items = new ItemManager(1u, cache, new ProvenanceLedger(), GameSettings(), _ => { }) };
     }
 }

tools/AetherDb/Program.cs

@@ -807,7 +807,8 @@ public static class Program
         };
 
         var log = new List<string>();
-        var itemManager = new ItemManager(db.Cache, new ProvenanceLedger(), settings, log.Add);
+        // A fixed seed: the catalog command's output must not depend on the clock.
+        var itemManager = new ItemManager(1u, db.Cache, new ProvenanceLedger(), settings, log.Add);
         var failures = 0;
         var targetingGaps = 0;