Improve runtime package manager workflow

[edisonlee0212]

Summary

• Add editor-side runtime package Build controls while keeping Build and Reload as separate actions.
• Support package builds from build-tree packages and installed app packages, including copying rebuilt outputs back into the runtime package directory.
• Restructure Runtime Package Manager into a package list panel and a package inspection panel, with all loaded packages shown flat.
• Reorder the editor menu bar, centralize View and Project menu ownership, and separate Layer Inspector tabs from the standalone Asset Inspector window.
• Block runtime package load, reload, and unload while the application is playing, paused, or stepping; add focused package-manager tests and documentation updates.
• Update repository guidance for manual-test executable build evidence.

Validation

• python Scripts\format_cpp.py --check --root EvoEngine_App\include\LauncherUtils.hpp --root EvoEngine_App\src\LauncherUtils.cpp --root EvoEngine_SDK\include\Core\AssetManager.hpp --root EvoEngine_SDK\include\Core\ILayer.hpp --root EvoEngine_SDK\include\Core\PackageManager.hpp --root EvoEngine_SDK\include\Core\ProjectManager.hpp --root EvoEngine_SDK\include\Layers\EditorLayer.hpp --root EvoEngine_SDK\src\Application.cpp --root EvoEngine_SDK\src\AssetManager.cpp --root EvoEngine_SDK\src\EditorLayer.cpp --root EvoEngine_SDK\src\PackageManager.cpp --root EvoEngine_SDK\src\ProjectManager.cpp --root EvoEngine_SDK\src\Resources.cpp --root EvoEngine_Tests\Core\AssetManagerTest.cpp
• git diff --cached --check
• cmake --build out\build\vs2026-x64 --config RelWithDebInfo --target EvoEngineEditor
• cmake --build out\build\vs2026-x64\EvoEngine_Tests --config RelWithDebInfo --target EvoEngine_Tests
• out\build\vs2026-x64\EvoEngine_Tests\RelWithDebInfo\EvoEngine_Tests.exe --gtest_filter="PackageManager.ModificationIsBlockedWhilePlayingPausedOrStepping:PackageManager.LoadAllIsRejectedWhileRuntimeIsBusy"
• cmake --build out\build\vs2026-x64 --config RelWithDebInfo --target EcoSysLabPackage
• python Scripts\install_apps.py --config RelWithDebInfo --incremental --no-open

Installed manual-test launcher:

C:\Users\lllll\Documents\GitHub\EvoEngine\out\install\vs2026-x64\bin\EvoEngineLauncher.exe