EB-2: felt spend - turrets burn a shared Charge pool, ledger-fed Fabricator mints it from Ore

Mined Ore now has an ongoing sink: a ledger-fed Fabricator converts Ore->Charge
(1 Ore -> 3 Charge / 30t) and turrets spend Charge per shot, soft-failing (no
shot, no cooldown burn) when the shared pool runs dry.

- ResourceId.Charge=4 rides the existing [GhostField] StorageEntry ledger (no new wire).
- TurretFireSystem: single ledger resolve + atomic spend / soft-fail / partial-refund.
- Fabricator.InputFromLedger (byte, server-only) feeds input from the shared ledger,
  read live in-loop so two machines split a finite pool; both modes deposit to ledger.
- HudSystem: violet Charge chip + global quiet-turret cue when siege && Charge==0.
- StorageMath.TotalOf backs the affordability read; catalog re-enables the Fabricator (4 entries).

See DR-033.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/_Project/Scripts/Simulation/Tuning.cs

@@ -57,6 +57,11 @@ namespace ProjectM.Simulation
         /// catch-up after any skipped ticks; restore re-seats the baseline so this never reflects wall-clock).</summary>
         public const int MaxProductionCatchup = 600;
 
+        /// <summary>EB-2: Charge (turret munition) consumed per turret shot, withdrawn from the global ledger. A
+        /// turret with 0 Charge SOFT-FAILS (no shot, no cooldown advance). A ledger-fed Fabricator mints Charge from
+        /// Ore. Operator feel-fork: keep generous so turrets stay fed while you keep mining.</summary>
+        public const int TurretChargeCostPerShot = 1;
+
         // ---- Inventory (per-player bag; InventoryMath / ResourceHarvestSystem / InventoryDepositSystem) ----
 
         /// <summary>Max stacks a player can carry; InventoryMath rejects deposits past this and the harvest remainder spills to the global ledger.</summary>