test: cover ARM fee collection after market recovery

[m0n3r0]

Summary

This PR adds regression coverage for ARM fee accounting after a withdrawal request is haircut by a market loss and the market later recovers.

Changes

• Adds a unit test for requestRedeem -> market loss -> haircut claim -> new deposit -> market recovery -> collectFees.
• Verifies recovery accrues a positive bounded fee, collection advances the fee baseline, and the already-claimed request remains closed.
• Verifies fee collection does not reopen or perturb withdrawal-queue accounting.

Testing

• forge test --match-path test/unit/OriginARM/ClaimRedeem.sol --match-test test_ClaimRedeem_WithFee_AfterMarketRecoveryCollectsOnlyRecoveryGain -vv
• forge test --match-path 'test/unit/OriginARM/*.sol' -vv

Notes

Defensive regression coverage only; no sensitive vulnerability details are included.