Add withdrawFeeTokens changeset for EVM fee-handling contracts

[finleydecker]

• Adds WithdrawFeeTokens changeset and sequence for withdrawing accumulated fee tokens from OnRamp, CommitteeVerifier, and all TokenPool variants on EVM chains
• Dispatches to the correct operation based on contract type (TokenPool requires a recipient; OnRamp/CommitteeVerifier send to their configured feeAggregator)
• Batches multiple contract withdrawals into a single MCMS proposal
• Uses auto-generated latest/operations/ for all contract operations (no manual ops)
• Includes tests for each contract path, multi-contract batching, pool type routing, and input validation

Example inputs (can also batch)

environment: testnet
domain: ccip
changesets:
- evm-withdraw-fee-tokens:
    payload:
      cfg:
        chainsel: 3478487238524512106
        contractrefs:
        - type: OnRamp
          version: 2.0.0
        - type: CommitteeVerifier
          version: 2.0.0
          qualifier: alpha
        feetokens:
        - "0x779877A7B0D9E8603169DdbD7836e478b4624789"
      mcms:
        timelockdelay: 300000000000

environment: testnet
domain: ccip
changesets:
- evm-withdraw-fee-tokens:
    payload:
      cfg:
        chainsel: 3478487238524512106
        contractrefs:
        - type: BurnMintTokenPool
          version: 2.0.0
          qualifier: CCIP-BnM
        feetokens:
        - "0x779877A7B0D9E8603169DdbD7836e478b4624789"
        recipient: "0x1234567890abcdef1234567890abcdef12345678"
      mcms:
        timelockdelay: 300000000000

[Copilot]

Pull request overview

Adds a new “withdraw fee tokens” workflow for EVM fee-handling contracts, enabling batched withdrawals across OnRamp, CommitteeVerifier, and TokenPool variants via an MCMS proposal.

Changes:

• Adds an auto-generated withdrawFeeTokens write operation for the EVM OnRamp (v1.6.0 ops) and registers it in the ops-gen config.
• Introduces a v1.7.0 sequence + changeset that routes withdrawals by contract type and batches results into a single MCMS batch operation.
• Adds Go tests covering precondition validation and non-pool withdrawal paths (OnRamp / CommitteeVerifier) plus TokenPool recipient validation.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
chains/evm/deployment/v1_6_0/operations/onramp/onramp.go	Adds OnRamp withdrawFeeTokens contract method wrapper and write operation.
chains/evm/deployment/operations_gen_config.yaml	Registers withdrawFeeTokens as an owner-only OnRamp operation for generation.
ccv/chains/evm/deployment/v1_7_0/sequences/withdraw_fee_tokens.go	Adds routing + batching sequence for fee-token withdrawals across contract types.
ccv/chains/evm/deployment/v1_7_0/operations/onramp/on_ramp.go	Removes redundant v1.7.0 OnRamp withdraw operation in favor of v1.6.0 generated op.
ccv/chains/evm/deployment/v1_7_0/changesets/withdraw_fee_tokens.go	Adds changeset wrapper resolving datastore refs into sequence input.
ccv/chains/evm/deployment/v1_7_0/changesets/withdraw_fee_tokens_test.go	Adds tests for validation + OnRamp/CommitteeVerifier apply paths.

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[github-actions]

Metric	add-withdraw-fee-tokens-changeset	develop
Coverage	70.0%	69.8%