Add HTML structure debugging script

- Create debug-html.ts to save actual HTML from pages
- Add npm run debug command to package.json
- Helps identify correct CSS selectors for crawlers
- Saves HTML to debug-ruliweb.html and debug-arcalive.html

Usage: npm run debug

crawler/package.json

@@ -8,7 +8,8 @@
     "dev": "tsx watch src/index.ts",
     "build": "tsc",
     "start": "node dist/index.js",
-    "test": "tsx src/test.ts"
+    "test": "tsx src/test.ts",
+    "debug": "tsx src/debug-html.ts"
   },
   "keywords": [
     "crawler",