feat(minor-axelarnet-gateway): route messages from nexus to router

[haiyizxx]

Description

Todos

• [ ] Unit tests
• [ ] Manual tests
• [ ] Documentation
• [ ] Connect epics/issues

Steps to Test

Expected Behaviour

Other Notes

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.47%. Comparing base (54bfaa6) to head (48c2ea3). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #659 +/- ## ======================================= Coverage 93.47% 93.47% ======================================= Files 237 237 Lines 34511 34529 +18 ======================================= + Hits 32258 32276 +18 Misses 2253 2253 ```

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