feat(fsharp): Fable browser platform, snake and pong pages, build-web.sh

Co-Authored-By: Claude Opus 5.5 <[email protected]>

fsharp/build-web.sh

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# Usage: ./build-web.sh
+# Compiles src/ + web/ to JavaScript with Fable (a local dotnet tool, see .config/dotnet-tools.json) into web/dist/.
+# index.html loads the Snake entry module, pong.html the Pong one.
+# Then serve the repo root (node scripts/serve.mjs) and open http://localhost:8000/fsharp/index.html.
+set -euo pipefail
+cd "$(dirname "$0")"
+export PATH="$HOME/.dotnet:$PATH"
+export DOTNET_NOLOGO=1 DOTNET_CLI_TELEMETRY_OPTOUT=1
+dotnet tool restore
+dotnet fable web -o web/dist --noCache