feat: WebGL 3D model viewer with smooth vertex normals, water caustics, soft cyan-slate material, floaty controls, and camera position mapping

run.ps1

@@ -0,0 +1,15 @@
+$ErrorActionPreference = "Stop"
+
+$projectRoot = Split-Path -Parent $MyInvocation.MyCommand.Path
+Set-Location -LiteralPath $projectRoot
+
+if (-not (Get-Command py -ErrorAction SilentlyContinue)) {
+    throw "Python 3.11 or newer is required. Install Python from python.org, then run this script again."
+}
+
+if (-not (Test-Path -LiteralPath ".venv\Scripts\python.exe")) {
+    & py -3 -m venv .venv
+}
+
+& .venv\Scripts\python.exe -m pip install --disable-pip-version-check -r requirements.txt
+& .venv\Scripts\python.exe app.py