Enable MorphoV2 WithdrawAll

[sparrowDom]

PR: Morpho V2 Liquidity Estimation + Safe WithdrawAll

Summary

This PR updates the Morpho V2 strategy to better estimate immediate liquidity and safely cap withdrawAll, while acknowledging that only Morpho V1 adapters are supported for extended liquidity checks.

Why

Morpho V2 vaults can configure a liquidity adapter. When that adapter points to a Morpho V1 vault, the strategy can query the V1 vault’s maxWithdraw to include additional immediately available liquidity. If the adapter is something else, the strategy intentionally does not assume additional liquidity. This avoids over‑estimating withdrawable amounts and prevents failed withdrawals.

Key Changes

• Liquidity estimation: withdrawAll now accounts for adapter‑backed liquidity when the adapter is a Morpho V1 vault.
• Safe withdraw cap: withdrawAll respects the actual available liquidity in the V2 vault and its adapter.
• Adapter validation: Enforces that the adapter used for estimation is the expected Morpho V1 adapter.
• Deployment: Adds a mainnet deployment file

Notes / Limitations

• Extended liquidity estimation is only applied when the V2 vault’s adapter is a Morpho V1 vault. Other adapter types are intentionally ignored to avoid incorrect liquidity assumptions.

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 39.67%. Comparing base (766c645) to head (1f943d8).

Files with missing lines	Patch %	Lines
...ontracts/contracts/strategies/MorphoV2Strategy.sol	88.88%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2783      +/-   ##
==========================================
+ Coverage   39.02%   39.67%   +0.64%     
==========================================
  Files         126      127       +1     
  Lines        5825     5843      +18     
  Branches     1546     1550       +4     
==========================================
+ Hits         2273     2318      +45     
+ Misses       3550     3523      -27     
  Partials        2        2              

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[clement-ux]

Everything looks good to me.

Note on withdrawAll():

When calling withdrawAll(), the strategy only withdraws what is currently liquid in the Morpho V2 vault (idle USDC + V1 adapter available liquidity). Under high utilization, some funds may remain in the strategy after the call. This is expected behavior, not a bug, but something to keep in mind operationally -- multiple calls or waiting for liquidity to free up may be needed to fully exit the position.

[sparrowDom]

good point @clement-ux have expressed this more verbosely in the comment: 1f943d8

[naddison36]

I think we should also change withdrawAll on Generalized4626Strategy so it calls maxRedeem instead of balanceOf. This way it redeems what it can.

This doesn't work for Morpho v2 vaults as they just return zero for all their max functions. For for vaults that are ERC-4626 compliant, the change to Generalized4626Strategy will work.

[sparrowDom]

@naddison36 good thinking thanks. Done here: 9ee8188