[Copilot]

Several accumulated quality issues across the framework have been addressed: a correctness bug in population tracking, docstring/README typos, platform-specific path construction, and a pytest warning.

Bug Fix

• population.py: __update_best_and_worst() assigned current_worst_fitness = np.min(fitness) — the best value. Changed to np.max(fitness). This directly corrupted mass computation in gravitational_search, which subtracts current_worst_fitness to derive agent masses.

Typos

• metaheuristic.py: "mataheuristic" → "metaheuristic"
• hyperheuristic.py: "meatheuristic" (×2), "vealues", "Diccionary", "retreived"
• operators.py: "paramenter"
• README.md: "auxiliar" → "auxiliary"; "may do not work. They are currently under developing." → "may not work. They are currently under development."

Cross-Platform Paths

Replaced hardcoded /-joined paths with os.path.join:

• hyperheuristic.py: "collections/" + heuristic_space → os.path.join("collections", heuristic_space); added missing import os; removed the stale # TODO: fix for any OS comment
• tools.py: temporal_full_path + "/" + file_name → os.path.join(temporal_full_path, file_name)

Misc

• tools.py: renamed subfolder_splitted_name → subfolder_name_parts ("splitted" is non-standard English)
• tests/test_makefile.py: removed return True/False from two test functions, eliminating PytestReturnNotNoneWarning