Update nori_aligned_bridge to consume NoriTokenBridge ABI from released ETH contracts package

[Kirol54]

Description

Following the re-release of the ETH contract package (with updated NoriTokenBridge.sol + published ABI), update the Rust nori_aligned_bridge repo to stop using the local abi/ folder and instead pull the ABI from the published package.

Goal: make this a drop-in replacement for the current abi/ usage with no breaking changes to the rest of the Rust repo.

Requirements

• Add an npm-based fetch/import step to obtain the released contracts package artifact (ABI).

• Replace current abi/ folder usage with ABI sourced from the installed package.

• Keep the Rust-side ABI access path stable (so existing code changes are minimal):

  • Ideally the Rust code still refers to the same ABI filename(s) or a wrapper provides the same interface.

• Refactor any Rust code that loads/parses the ABI to point at the new location.

• Ensure build/test flow works locally

Suggested Implementation

• Add a package.json + npm install step:

  • Depend on the released ETH contracts package (pinned version).

• Add a small script (Node or shell) invoked by Cargo build/test that:

  • Copies the ABI artifact from node_modules/<pkg>/... into a predictable location (e.g. ./abi/ or ./generated/abi/)
  • OR updates Rust to read directly from node_modules/... (less ideal for CI portability)
  • OR you decide on best approach

Tasks

1. Add npm dependency

   • Add package.json / lockfile and dependency on the ETH contracts package version.

2. Add ABI sync step

   • Create scripts/sync_abi.(js|sh) to copy NoriTokenBridge ABI into ./abi/ (or a new generated folder).
   • Wire into cargo build via build.rs, Makefile, or CI step.

3. Rust refactor

   • Update ABI loading paths only (ideally centralized in one module).
   • Ensure generated bindings / ABI parsing still works.

4. Cleanup

   • Remove committed ABI copies if feasible.

Acceptance Criteria

• nori_aligned_bridge no longer relies on a manually maintained abi/ copy.
• ABI is sourced from the published NoriSDK contracts package (pinned version).
• Minimal code changes; no breaking changes to public Rust APIs.
• Repo builds pass locally