Normalize decomposed transform axes to extract rotation correctly

[sheazywi]

Summary

• normalize basis vectors in Math::DecomposeTransform when extracting translation, rotation and scale
• prevent divide-by-zero when scale axis length is zero

Testing

• g++ -std=c++17 -IStarEngine/src -c StarEngine/src/StarEngine/Math/Math.cpp (fails: Linux is not supported)

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https://chatgpt.com/codex/tasks/task_e_689a86cc2f308325a4cd5b9565997a20

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