feat(minor-coordinator): add client for queries

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 96.61017% with 2 lines in your changes missing coverage. Please review.

Project coverage is 93.66%. Comparing base (52fff84) to head (073109c). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
contracts/coordinator/src/client.rs	96.61%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #618 +/- ## ======================================= Coverage 93.66% 93.66% ======================================= Files 234 235 +1 Lines 33322 33381 +59 ======================================= + Hits 31210 31267 +57 - Misses 2112 2114 +2 ```

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