Add NG_FriedmanSuite problem class

[nikivanstein]

Motivation

• Add a new problem class that lets users supply a 25-function suite and evaluates how well that suite discriminates between five Nevergrad optimizers using a Friedman-ranks IQR metric.
• Transform the provided evaluation script into a BLADE Problem so suites can be authored as solution code and scored inside the platform.

Description

• Add iohblade/problems/ng_friedman_suite.py implementing NG_FriedmanSuite with prompts, example/format guidance, validation (_validate_suite), benchmarking (run_benchmark + NG_Evaluator) and scoring (get_friedman_val).
• The problem accepts problems and meta_dims (25 entries each) as authored code and wraps each function with ioh on [-5,5]^d, runs the Nevergrad optimizers, collects logs via ioh.logger.Analyzer and iohinspector, and computes the mean IQR of Friedman ranks as the fitness.
• Add required runtime dependencies and imports strings for evaluation environments (nevergrad, ioh, iohinspector, polars, scipy) and configure the problem interface (func_name = "problems", empty init_inputs/func_inputs/func_outputs).
• Export NG_FriedmanSuite from iohblade/problems/__init__.py so it is visible under the problems package.

Testing

• Ran formatting and import-order fixes with uv run isort iohblade/ and code formatting with uv run black iohblade/, which reformatted files and updated the new module.
• Ran the test suite with uv run pytest tests/; collection failed due to missing external packages (ModuleNotFoundError during collection). The immediate missing modules reported include cloudpickle, ioh, numpy, httpx, mlflow, and matplotlib, so pytest could not complete.
• Unit/e2e tests were not able to exercise the new problem because the environment lacks the runtime dependencies required to run NG_FriedmanSuite (nevergrad/ioh/iohinspector/etc.).

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Codecov Report

❌ Patch coverage is 0% with 122 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
iohblade/problems/ng_friedman_suite.py	0.00%	118 Missing ⚠️
iohblade/problems/__init__.py	0.00%	4 Missing ⚠️

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