refactor: replace uint8_t with std::byte in MemoryStream and Prefab classes

[Machillka]

Summary by CodeRabbit

• Refactor

  • Updated internal binary data handling to use std::byte consistently.
  • No user-facing behavior changes are expected.

• Style

  • Updated the editor’s saved docking layout to select a different active tab.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: e46da14e-2fbd-485e-a57b-fa21d24550a8

📥 Commits

Reviewing files that changed from the base of the PR and between 5944431 and 462c8a7.

📒 Files selected for processing (5)

• engine/Runtime/Core/include/ChikaEngine/io/MemoryStream.h
• engine/Runtime/Core/src/io/MemoryStream.cpp
• engine/Runtime/Framework/include/ChikaEngine/prefab/Prefab.hpp
• engine/Runtime/Framework/include/ChikaEngine/scene/scene.hpp
• imgui.ini

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📝 Walkthrough

Walkthrough

The change replaces selected uint8_t byte storage with std::byte in runtime classes and updates the MemoryStream accessor. It also changes the selected window handle for one ImGui dock node.

Changes

Byte Storage Type Updates

Layer / File(s)	Summary
Runtime byte storage migration engine/Runtime/Core/include/ChikaEngine/io/MemoryStream.h, engine/Runtime/Core/src/io/MemoryStream.cpp, engine/Runtime/Framework/include/ChikaEngine/prefab/Prefab.hpp, engine/Runtime/Framework/include/ChikaEngine/scene/scene.hpp	MemoryStream now stores and returns std::byte values. Prefab::_data and Scene::_playBackup also use std::byte. The required <cstddef> includes and constructor cast are updated.

Editor Layout Update

Layer / File(s)	Summary
Dock selection update imgui.ini	The selected window handle for dock node 0x00000006 changes from 0x9B5D3198 to 0x4EC85DF5.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Refactor

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch core

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