Add project files.

scripts/setup.bat

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+@echo off
+REM One-time (or re-run any time) environment setup for this template:
+REM
+REM   1. Fetches the pinned ninja (cmake\FetchNinja.cmake) -- used by
+REM      scripts\build.bat if found (see there); a system ninja still
+REM      works fine too, this just avoids needing one installed at all.
+REM   2. Fetches the pinned Doxygen (cmake\FetchDoxygen.cmake) -- NOT
+REM      required to build the project itself (see cmake\Documentation.cmake),
+REM      only to run scripts\docs.bat afterward.
+REM   3. Checks for clang-format/clang-tidy (used by scripts\refactor.bat and
+REM      .githooks\pre-commit) and prints install guidance if either is
+REM      missing -- these aren't auto-installed, since doing so would need
+REM      assumptions about your package manager/installer this script
+REM      shouldn't assume it has.
+REM   4. Activates the pre-commit hook (.githooks\pre-commit) for this
+REM      clone, if it's a git repository.
+REM
+REM Usage (from the project root):
+REM   scripts\setup.bat
+setlocal enabledelayedexpansion
+
+cd /d "%~dp0.."
+
+where cmake >nul 2>nul
+if errorlevel 1 (
+    echo error: cmake not found on PATH.
+    exit /b 1
+)
+
+echo ==^> Fetching pinned ninja (cmake\FetchNinja.cmake)
+cmake -P cmake\FetchNinja.cmake
+if errorlevel 1 exit /b 1
+
+echo.
+echo ==^> Fetching pinned Doxygen (cmake\FetchDoxygen.cmake)
+cmake -P cmake\FetchDoxygen.cmake
+if errorlevel 1 exit /b 1
+
+echo.
+echo ==^> Checking for clang-format / clang-tidy
+set "_missing=0"
+
+where clang-format >nul 2>nul
+if errorlevel 1 (
+    echo     clang-format: not found
+    set "_missing=1"
+) else (
+    for /f "delims=" %%V in ('where clang-format') do echo     clang-format: %%V
+)
+
+where clang-tidy >nul 2>nul
+if errorlevel 1 (
+    echo     clang-tidy:   not found
+    set "_missing=1"
+) else (
+    for /f "delims=" %%V in ('where clang-tidy') do echo     clang-tidy:   %%V
+)
+
+if "%_missing%"=="1" (
+    echo.
+    echo     Install the missing tool(s^) with one of:
+    echo       winget install LLVM.LLVM
+    echo       choco install llvm
+    echo       or the installer from https://releases.llvm.org/
+    echo     Not required to build this project -- only for scripts\refactor.bat
+    echo     and the pre-commit hook.
+)
+
+echo.
+git rev-parse --is-inside-work-tree >nul 2>nul
+if errorlevel 1 (
+    echo ==^> Skipping pre-commit hook activation ^(not a git repository yet^)
+    echo     Once you've run "git init", re-run this script or:
+    echo       git config core.hooksPath .githooks
+) else (
+    echo ==^> Activating pre-commit hook
+    git config core.hooksPath .githooks
+    echo     core.hooksPath = .githooks
+)
+
+echo.
+echo ==^> Setup complete. scripts\build.bat and scripts\docs.bat are ready to use.
+exit /b 0