chore: reorg codegen logic and add test gobindings

[RayXpub]

Summary

This PR reorganizes the operations code generation logic by splitting the single evm.go file into:

• evm.go — Handler
• config.go — YAML config structs
• abi.go — ABI parsing
• contract.go — ContractInfo extraction and struct def collection
• codegen.go — template data types, rendering, and naming helpers

This PR does not introduce any code logic change, it is purely a code reorg to improve readability and code management. It also introduces go bindings under testdata to anticipate upcoming changes which will update the code generation logic to build on top of gobindings (#949).

[changeset-bot]

⚠️ No Changeset found

Latest commit: 87b9363

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[Copilot]

Pull request overview

This PR refactors the EVM operations generator implementation by splitting the previously monolithic EVM generator file into focused modules (config, ABI parsing, contract extraction, codegen), and adds pre-generated Go bindings under testdata to support upcoming gobindings-based generation work.

Changes:

• Split EVM generator responsibilities across new config.go, abi.go, contract.go, and codegen.go files while keeping evm.go as the handler entrypoint.
• Update tests to use an external test package (evm_test) and add targeted unit tests for codegen/name helpers.
• Add abigen-style Go bindings under tools/operations-gen/testdata/evm/gobindings/... for future generator evolution.

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tools/operations-gen/testdata/evm/gobindings/v1_0_0/many_chain_multisig/many_chain_multisig.go	Adds generated gobindings fixture for ManyChainMultiSig contract.
tools/operations-gen/testdata/evm/gobindings/v1_0_0/link_token/link_token.go	Adds generated gobindings fixture for LinkToken contract.
tools/operations-gen/internal/families/evm/evm_golden_test.go	Moves golden tests to evm_test and updates references to exported APIs.
tools/operations-gen/internal/families/evm/evm.go	Leaves handler orchestration in place; delegates details to new modules.
tools/operations-gen/internal/families/evm/contract.go	Introduces ContractInfo extraction and struct definition collection.
tools/operations-gen/internal/families/evm/config.go	Introduces YAML config structs for EVM generator inputs/contracts/outputs.
tools/operations-gen/internal/families/evm/codegen_test.go	Adds unit tests for ToSnakeCase and big.Int import detection logic.
tools/operations-gen/internal/families/evm/codegen.go	Adds template data types + rendering + naming helper(s) and big.Int detection.
tools/operations-gen/internal/families/evm/abi_test.go	Updates ABI-related tests to evm_test and targets exported parsing helpers.
tools/operations-gen/internal/families/evm/abi.go	Adds ABI parsing, type mapping, and helper utilities used by codegen/extraction.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[cl-sonarqube-production]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube