Added MorphoBlueMarket to integrate USDC ARM to Morpho markets

[naddison36]

Summary

Adds direct Morpho Blue lending-market support for the USDC ARM.

• Adds an ERC-4626-compatible MorphoBlueMarket wrapper around a single Morpho Blue market.
• Uses one shared implementation with a separately configured proxy for each market.
• Projects pending interest and protocol-fee dilution when valuing Morpho supply shares.
• Limits withdrawals and redemptions based on available market liquidity.
• Restricts position movement to the linked ARM.
• Supports token-agnostic reward collection:
  • USDC rewards return to the ARM.
  • Other reward tokens are sent to the harvester.

End-to-End ARM Allocation Costs

This benchmark compares:

• Direct Morpho Blue: MorphoBlueMarket supplies directly to one Morpho Blue market.
• Currently deployed path: the deployed WETH ARM uses MorphoMarket to supply through the WETH ARM MetaMorpho V1.1 vault.

ARM operation	Direct Morpho Blue	Currently deployed path	Gas saved	Reduction
Allocate deposit	264,483	532,244	267,761	50.3%
Allocate withdrawal	276,788	679,828	403,040	59.3%

Morpho market gas comparison

Added isolated mainnet-fork benchmarks comparing:

• MorphoBlueMarket, supplying directly to Morpho Blue.
• The existing MorphoMarket path through the WETH ARM MetaMorpho V1.1 vault.

Both paths use the same underlying weETH/WETH 94.5% LLTV Morpho Blue market, so the results isolate the overhead of the MetaMorpho vault layer.

The benchmark is pinned to mainnet block 25,873,533 and measures steady-state operations with existing positions.

Results

Operation	Direct Morpho Blue	MetaMorpho V1.1	Direct saving
Deposit	97,448	282,913	65.6%
Withdraw	72,077	264,803	72.8%
Redeem	71,945	264,804	72.8%
convertToAssets	16,745	169,384	90.1%
maxWithdraw	22,779	187,472	87.8%
maxRedeem	22,763	188,093	87.9%
balanceOf	13,763	11,391	−20.8%

The direct integration is substantially cheaper for every operation except the simple share-balance lookup.

These figures measure the market-wrapper calls themselves. Fixed ARM allocation overhead is excluded equally from both paths.

Deployment

Adds deployment 043, which deploys and registers wrappers for:

Market	Market ID
OETH/USDC 86%	0xb8fef900b383db2dbbf4458c7f46acf5b140f26d603a6d1829963f241b82510e
WBTC/USDC 86%	0x3a85e619751152991742810df6ec69ce473daef99e28a64ab2340d7b7ccfee49
cbBTC/USDC 86%	0xba3ba077d9c838696b76e29a394ae9f0d1517a372e30fd9a0fc19c516fb4c5a7
cbBTC/USDC 86%	0x64d65c9a2d91c36d56fbc42d69e979335320169b3df63bf92789e2c8883fcc64

The deployment:

• Verifies each configured parameter set against its expected Morpho market ID.
• Uses the 5/8 multisig as wrapper owner.
• Uses the buyback operator as harvester.
• Registers all four wrappers with the USDC ARM.
• Does not activate a market automatically, allowing the operator to select one later.

Testing

Adds unit coverage for:

• Proxy initialization and market configuration.
• Multiple proxies sharing one implementation.
• Deposits and complete position redemption.
• Pending interest and protocol-fee accounting.
• Liquidity-constrained withdrawals and redemptions.
• ARM-only position movement.
• Token-agnostic reward routing.
• Harvester authorization.
• Rejection of unknown Morpho markets.