Add web shell, build and deploy scripts, Playwright smoke

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

web/wrangler.jsonc

@@ -0,0 +1,8 @@
+{
+  "$schema": "./node_modules/wrangler/config-schema.json",
+  "name": "crychicui",
+  "compatibility_date": "2026-10-01",
+  "workers_dev": true,
+  "preview_urls": true,
+  "assets": { "directory": "./dist" }
+}