[jacobdenobel]

Requested by the repository owner: remove the v1 Analyzer logger, make v2 the only Analyzer, and remove the v1 bindings and docs. This is a breaking change for code that uses ioh.logger.old, Experiment(old_logger=...) or names analyzer::v1/v2 in C++. The CHANGELOG (### Removed) and the upgrade guide list each removed item and what to use instead. The Analyzer output is unchanged: the byte-for-byte golden tests pass.

Work package E07: Remove the v1 Analyzer logger

Branch: wp/E07-remove-analyzer-v1
Status: ready for review

Done

• step 1/3: folded analyzer::v1 and v2 into one analyzer::Analyzer, removed the .info writer and its C++ tests; 118 C++ tests pass (Debug).

• step 2/3: removed ioh.logger.old, Experiment(old_logger=), stubs, tests, tutorial, example README.

• step 3/3: CHANGELOG ### Removed and upgrade guide sections. Python module built in .venv; all Python tests pass in a
  copy outside the tree (test_golden.py and test_logger.py included). The one error test_array_layout.py:: tester_inc_one_transform is pytest collecting a helper function, unrelated.

Next step

None. Controller: push once E05 is merged and open the draft PR.

Decisions

• No analyzer::v2::Analyzer alias: the class is ioh::logger::analyzer::Analyzer, ioh::logger::Analyzer is an alias to it.
• Dropped the use_old_data_format constructor argument with v1.
• Kept E05's full_precision and "precision" JSON key.

Open questions / Blocked

• none

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Work package from the IOHanalyzer rebuild plan (plan/ in IOHprofiler/ioh-web). Review and merge are done by a person.

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