Update AGENTS and verify R data script

[thorek1]

Summary

• merge latest rethink_parser changes bringing micromamba install hint
• follow AGENTS instructions to install R environment with micromamba
• run benchmark/getEAdata.R successfully and generate data files

Testing

• git status --short
• executed Rscript benchmark/getEAdata.R after micromamba setup (outputs created)

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https://chatgpt.com/codex/tasks/task_e_684748f54ee0832f8b578d9c10db2c22

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.57%. Comparing base (32eb863) to head (694e939).
Report is 1 commits behind head on rethink_parser.

Additional details and impacted files

@@                Coverage Diff                 @@
##           rethink_parser     #117      +/-   ##
==================================================
- Coverage           87.65%   87.57%   -0.09%     
==================================================
  Files                  18       18              
  Lines               10523    10523              
==================================================
- Hits                 9224     9215       -9     
- Misses               1299     1308       +9     

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