chore: devnet to testnet

[dtfiedler]

All write interactions expect mIO - the tools still allow IO to be provided, but will convert to mIO when writing the interaction.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.91%. Comparing base (e5a1b53) to head (daabe26).
Report is 14 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #248      +/-   ##
==========================================
- Coverage   89.11%   88.91%   -0.20%     
==========================================
  Files          40       40              
  Lines        1901     1903       +2     
  Branches      471      471              
==========================================
- Hits         1694     1692       -2     
- Misses        191      195       +4     
  Partials       16       16              

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