[JamieW105]

Replace the editor and Project Manager interface icons with bundled Lucide SVGs: transform tools, folders, non-script files, playback/status controls, component chevrons, New project, and custom Windows caption buttons. Preserve all ten existing script/language SVGs and their file-extension mappings byte-for-byte, as requested.

The shared desktop icon module applies theme and hover tinting, retains control labels and caption accessibility names, and installs SVG loaders for the launcher. Pin the upstream icon source, remove superseded Material Design interface assets, and package both icon-pack license notices with the Windows installer. The application brand icon is unchanged.

Validation:

• cargo fmt --all -- --check and git diff --check: passed.
• cargo check --locked -p engine-desktop -p rustic-editor -p rustic-project-manager: passed.
• All 20 Lucide SVGs parse with white tintable strokes; all 10 original script/language SVGs are unchanged.
• cargo test --locked -p engine-desktop: passed (2 tests).
• cargo clippy --locked -p engine-desktop -p rustic-editor -p rustic-project-manager --all-targets -- -D warnings: passed.
• Full repository CI passed on Windows and Linux, including rendering/viewport checks, application smoke tests, language adapter conformance, dependency/license auditing, and workflow validation: https://github.com/Rustic-Game-Engine/engine/actions/runs/39561333025.
• Fresh Windows installer RusticGameEngine-Setup-0.1.0-x64-20261021-073735.exe built successfully; packaged Setup/toolchain tests passed. Artifact: windows-installer in the CI run.
• Companion website documentation: Document Lucide interface icons and preserved script icons docs#54 (strict ESLint, production build, TypeScript and npm audit passed).