feat: migrate hosting to Cloudflare Pages via git.ampbox.io

- Update site URL to https://crashtestdev.com, remove /crashtestdev base path
- Add Gitea Actions workflow for Cloudflare Pages deployment
- Remove GitHub Actions workflows (GitHub Pages + legacy Azure SWA)
- Update tests to match new site config

🤖 Generated with [Amplifier](https://github.com/microsoft/amplifier)

Co-Authored-By: Amplifier <240397093+microsoft-amplifier@users.noreply.github.com>

.gitea/workflows/deploy.yml

@@ -3,7 +3,7 @@ name: Deploy to Cloudflare Pages
 on:
   push:
     branches:
-      - main
+      - master
 
 jobs:
   deploy: