feat(queue): add events

src/MetaMorpho.sol

@@ -203,6 +203,8 @@ contract MetaMorpho is ERC4626, ERC20Permit, Ownable2Step, IMetaMorpho {
         }
 
         supplyQueue = newSupplyQueue;
+
+        emit EventsLib.SetSupplyQueue(msg.sender, newSupplyQueue);
     }
 
     function sortWithdrawQueue(uint256[] calldata indexes) external onlyAllocator {
@@ -239,6 +241,8 @@ contract MetaMorpho is ERC4626, ERC20Permit, Ownable2Step, IMetaMorpho {
         }
 
         withdrawQueue = newWithdrawQueue;
+
+        emit EventsLib.SetWithdrawQueue(msg.sender, newWithdrawQueue);
     }
 
     function reallocate(MarketAllocation[] calldata withdrawn, MarketAllocation[] calldata supplied)
@@ -553,7 +557,7 @@ contract MetaMorpho is ERC4626, ERC20Permit, Ownable2Step, IMetaMorpho {
             // 1. oracle.price() is never called (the vault doesn't borrow)
             // 2. `_withdrawable` caps to the liquidity available on Morpho
             // 3. virtually accruing interest didn't fail in `_withdrawable`
-            assets = assets.zeroFloorSub(_withdrawable(marketParams, id));
+            assets -= _withdrawable(marketParams, id);
 
             if (assets == 0) return 0;
         }

src/libraries/EventsLib.sol

@@ -27,4 +27,8 @@ library EventsLib {
     /// @notice Emitted when the vault's last total assets is updated.
     /// @param totalAssets The total amount of assets this vault manages.
     event UpdateLastTotalAssets(uint256 totalAssets);
+
+    event SetSupplyQueue(address indexed allocator, Id[] id);
+
+    event SetWithdrawQueue(address indexed allocator, Id[] id);
 }